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Model Options

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

CO: 0 to 500 PPM <br>NO2: 10 PPM
CO: Switch selectable 200 or 500 PPM <br>NO2: 10 PPM
Electrical: Removable terminal block, knock outs for conduit fitting
Electrical: Removable terminal block, knocks out for conduit fitting
UV resistant glass filled polycarbonate
Limits: 15 to 90% RH constant; 0 to 99% RH intermittent
IP64
1 lb (.45 kg)
1 lb (0.45 kg)
Field replaceable electrochemical, 2 years typical lifespan
Field replaceable electrochemical, 4 years typical lifespan
-4 to 122°F (-20 to 50°C)
Ambient: -4 to 122°F (-20 to 50°C)
5000 to 7500 sq ft typical
CE
CO: 2% FS <br>NO2: 3% FS, at the time of calibration
CO: ±2% FS <br>NO2: ±3% FS, at the time of calibration
Drift: <5% per year in air
CO: 1 PPM
NO2: 0.1 PPM
For best sensor life, 32 to 68°F (0 to 20°C)
Via pushbutton, using optional A-449 display
Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol
10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC
Current output: 10-35 VDC <br>Voltage output: 15-35 VDC or 15-29 VAC
BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol
Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output
CO: 2% FS <br>NO2: 3% FS, at the time of calibration
Drift: <5% per year in air
<45 s to 90% CO, <25 s to 90% NO2
<45 seconds to 90% CO, <25 to 90% NO2
product

Dwyer Instruments GSTA-C-LCD-FC | Carbon monoxide transmitter with universal current/voltage outputs | LCD display | Includes factory calibration certificate

Brand : Image Brand
Stock Status : Contact us for delivery
Brand : Image Brand
Stock Status : Out of Stock

Part Number : GSTA-C-LCD-FC

Gas concentrations in loading docks and subterranean parking garages are monitored using Carbon Monoxide/Nitrogen Dioxide Transmitters, Model GSTA-C-LCD-FC, Series GSTA. Diesel engines often employ nitrogen dioxide, while gasoline engines typically use carbon monoxide to measure emissions. The transmitter can be used with nearly any building management controller thanks to its field-selectable current and voltage outputs. The user has the option to set the output range for carbon monoxide units to either 0 to 50 PPM or 0 to 500 PPM. Standard nitrogen dioxide units have a 0 to 10 PPM range. Use the internal dip switches to flip the output so that it reads 20 to 4 mA or 10 (5) to 0 VDC.

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SIMILAR PRODUCTS

Dwyer Instruments CDT-2D40 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output

Part Number : CDT-2D40

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Part Number : CDT-2D40 Dwyer Instruments CDT-2D40 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output
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Dwyer Instruments CDT-2D44 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output & temperature output

Part Number : CDT-2D44

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Part Number : CDT-2D44 Dwyer Instruments CDT-2D44 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output & temperature output
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Dwyer Instruments CDT-2D4A | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 10K Ohm Type III thermistor temperature output

Part Number : CDT-2D4A

Dwyer Instruments CDT-2D4B | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 10K Ohm Type II thermistor temperature output

Part Number : CDT-2D4B

Dwyer Instruments CDT-2D4D | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and PT100 Ohm RTD temperature output

Part Number : CDT-2D4D

Dwyer Instruments CDT-2D4E | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and PT1000 RTD temperature output

Part Number : CDT-2D4E

Dwyer Instruments CDT-2D4F | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 20K Ohm thermistor temperature output

Part Number : CDT-2D4F

Dwyer Instruments CDT-2E40 | Carbon Dioxide | Wall Mount | Universal current/voltage output | European Housing

Part Number : CDT-2E40

Dwyer Instruments CDT-2E40-LCD | Carbon Dioxide | Wall Mount | Universal current/voltage output | European Housing | LCD Display

Part Number : CDT-2E40-LCD

Dwyer Instruments CDT-2E44 | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | European Housing

Part Number : CDT-2E44

Dwyer Instruments CDT-2E44-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | European Housing | LCD Display.

Part Number : CDT-2E44-LCD

Dwyer Instruments CDT-2E4B | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type II Thermistor Temperature Output | European Housing.

Part Number : CDT-2E4B

Dwyer Instruments CDT-2E4E | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt1000 RTD Temperature Output | European Housing.

Part Number : CDT-2E4E

Dwyer Instruments CDT-2N40 | Carbon Dioxide | Wall Mount | Universal current/voltage output | North American Housing

Part Number : CDT-2N40

Dwyer Instruments CDT-2N40-LCD | Carbon Dioxide | Wall Mount | Universal current/voltage output | North American Housing | LCD Display

Part Number : CDT-2N40-LCD

Product Name Range Resolution Accuracy Weight Power Maximum operating temperature Response Time Storage Temperature Housing Connection Humidity Output Signal Output Approvals Sensor Type Enclosure Rating Zero and Span Adjustments Coverage Area
Dwyer Instruments CDT-2D40 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D44 | Carbon Dioxide Transmitter | Duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output & temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D4A | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 10K Ohm Type III thermistor temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D4B | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 10K Ohm Type II thermistor temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D4D | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and PT100 Ohm RTD temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D4E | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and PT1000 RTD temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2D4F | Carbon Dioxide Transmitter | Duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 20K Ohm thermistor temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E40 | Carbon Dioxide | Wall Mount | Universal current/voltage output | European Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E40-LCD | Carbon Dioxide | Wall Mount | Universal current/voltage output | European Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E44 | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | European Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E44-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | European Housing | LCD Display. CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E4B | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type II Thermistor Temperature Output | European Housing. CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2E4E | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt1000 RTD Temperature Output | European Housing. CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N40 | Carbon Dioxide | Wall Mount | Universal current/voltage output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N40-LCD | Carbon Dioxide | Wall Mount | Universal current/voltage output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N44 | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N44-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4A | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type III Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4A-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type III Thermistor Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4B | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type II Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4B-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type II Thermistor Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4D | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt100 RTD Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4D-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt100 RTD Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4E | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt1000 RTD Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4E-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | Pt1000 RTD Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4F | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 20K Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4F-LCD | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 20K Thermistor Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDT-2N4B-RLY | Carbon Dioxide/Temperature | Wall Mount | Universal current/voltage output | 10K Type II Thermistor Temperature Output | North American Housing with relay CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Temperature: 32 to 122°F (0 to 50°C)		 - CO2: ±40 PPM + 3% of reading (2000 PPM CO2)
± 50 PPM + 5% of reading (5000 PPM CO2)
RH: ±2% (10 to 90% RH) (for units configured with humidity output)
Temperature: ±1°C @ 25°C		 - 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 2 min for 90% step change - - - Limits: 0 to 85% (non-condensing) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)
Relay: SPST NO rated 2A @ 30 VDC
RTD or thermistor per Resistance vs. Temperature Table (depending on model)		 CE - - - -
Dwyer Instruments CDTA-2N000 | Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override | Modbus" and BACnet Output | North American Wall Mount Housing | 2000 PPM Range CO2 : 0 to 2000 or 5000 PPM CO 2 (depending on model)
Humidity: 0 to 100% RH
Temperature: 32 to 122°F (0 to 50°C)		 - CO2 : ±40 PPM ±3% of reading 2000 PPM
±50 PPM + 5% of reading 5000 PPM
RH: ±2% (10 to 90% RH)
Temperature: ±1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC / 10-30 VAC 32 to 122°F (0 to 50°C) CO2: 2 min for 90% step change - - - Limits: 0 to 85% RH (non-condensing) - 2-wire RS-485, Modbus ® RTU or BACnet MS/TP communication protocol BTL, CE CO2: NDIR, 15 year life expectancy
Humidity: Capacitive polymer
Temperature: Solid state band gap		 - - -
Dwyer Instruments CDTA-2N000-LCD | Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override | Modbus" and BACnet Output | North American Wall Mount Housing | 2000 PPM Range | LCD Display CO2 : 0 to 2000 or 5000 PPM CO 2 (depending on model)
Humidity: 0 to 100% RH
Temperature: 32 to 122°F (0 to 50°C)		 - CO2 : ±40 PPM ±3% of reading 2000 PPM
±50 PPM + 5% of reading 5000 PPM
RH: ±2% (10 to 90% RH)
Temperature: ±1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC / 10-30 VAC 32 to 122°F (0 to 50°C) CO2: 2 min for 90% step change - - - Limits: 0 to 85% RH (non-condensing) - 2-wire RS-485, Modbus ® RTU or BACnet MS/TP communication protocol BTL, CE CO2: NDIR, 15 year life expectancy
Humidity: Capacitive polymer
Temperature: Solid state band gap		 - - -
Dwyer Instruments CDTA-5N000 | Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override | Modbus" and BACnet Output | North American Wall Mount Housing | 5000 PPM Range CO2 : 0 to 2000 or 5000 PPM CO 2 (depending on model)
Humidity: 0 to 100% RH
Temperature: 32 to 122°F (0 to 50°C)		 - CO2 : ±40 PPM ±3% of reading 2000 PPM
±50 PPM + 5% of reading 5000 PPM
RH: ±2% (10 to 90% RH)
Temperature: ±1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC / 10-30 VAC 32 to 122°F (0 to 50°C) CO2: 2 min for 90% step change - - - Limits: 0 to 85% RH (non-condensing) - 2-wire RS-485, Modbus ® RTU or BACnet MS/TP communication protocol BTL, CE CO2: NDIR, 15 year life expectancy
Humidity: Capacitive polymer
Temperature: Solid state band gap		 - - -
Dwyer Instruments CDTA-5N000-LCD | Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override | Modbus" and BACnet Output | North American Wall Mount Housing | 5000 PPM Range | LCD Display CO2 : 0 to 2000 or 5000 PPM CO 2 (depending on model)
Humidity: 0 to 100% RH
Temperature: 32 to 122°F (0 to 50°C)		 - CO2 : ±40 PPM ±3% of reading 2000 PPM
±50 PPM + 5% of reading 5000 PPM
RH: ±2% (10 to 90% RH)
Temperature: ±1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC / 10-30 VAC 32 to 122°F (0 to 50°C) CO2: 2 min for 90% step change - - - Limits: 0 to 85% RH (non-condensing) - 2-wire RS-485, Modbus ® RTU or BACnet MS/TP communication protocol BTL, CE CO2: NDIR, 15 year life expectancy
Humidity: Capacitive polymer
Temperature: Solid state band gap		 - - -
Dwyer Instruments CDTR-2D404 | Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & no temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2D4A4 | Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & 10 kO Type 3 thermistor temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - - CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2D4B4 | Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & 10 kO Type 2 thermistor temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2D4D4 | Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & Pt100 O RTD temperature output Duct Air Velocity: 0-4000 FPM (20.32 m/s) - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2D4E4 | Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & Pt1000 O RTD temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2E404 | Carbon Dioxide/Humidity | Wall Mount | Universal current/voltage output | European Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2E4A4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type III Thermistor Temperature Output | European Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2E4A4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type III Thermistor Temperature Output | European Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2E4B4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type II Thermistor Temperature Output | European Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D404 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | No temperature CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D4A4 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | 10K Ohm Type III temperature sensor Duct Air Velocity: 0-4000 FPM (20.32 m/s) - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D4B4 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | 10K Ohm Type II temperature sensor CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D4D4 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | PT100 Ohm RTD temperature sensor CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N404 | Carbon Dioxide/Humidity | Wall Mount | Universal current/voltage output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D4E4 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | PT1K Ohm RTD temperature sensor CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2D4F4 | Duct VOC & CO2 transmitter | Universal analog outputs | 2000PPM CO2 | 20K Ohm temperature sensor CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N404 | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) Average: 2 watts
Peak: 3.75 watts		 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE - Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N404-LCD | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 with LCD display CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N4A4 | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 | 10K Ohm Type III temperature sensor CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N4A4-LCD | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 | 10K Ohm Type III temperature sensor with LCD display CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N4B4 | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 | 10K Ohm Type II temperature sensor Duct Air Velocity: 0-4000 FPM (20.32 m/s) - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTV-2N4B4-LCD | Wall Voc & CO2 transmitter | Universal analog outputs | 2000 ppm CO2 | 10K Ohm Type II temperature sensor with LCD display CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)
VOC: 0 to 2000 ppm CO2 equivalent		 - CO2: ±40 ppm ±3% of reading 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) CO2: 2 minutes for 99% step change; VOC: 5 minutes - - - - - Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 O)
Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 O)
Relay: SPST NO 2A @ 30 VDC		 CE CO2: Single-beam, dual-wavelength NDIR; VOC: MEMS metal oxide semiconductor Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4A4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type III Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4A4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type III Thermistor Temperature Output | North American Housing | LCD Display Duct Air Velocity: 0-4000 FPM (20.32 m/s) - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4B4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type II Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4B4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 10 kO Type II Thermistor Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4D4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | Pt100 O RTD Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4D4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | Pt100 O RTD Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4E4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | Pt1000 O RTD Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4E4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | Pt1000 O RTD Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4F4 | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 20 kO Thermistor Temperature Output | North American Housing CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-2N4F4-LCD | Carbon Dioxide/Temperature/Humidity | Wall Mount | Universal current/voltage output | 20 kO Thermistor Temperature Output | North American Housing | LCD Display CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDTR-5D404 | Carbon Dioxide/RH/Temperature Transmitter | 5000 ppm CO2 range | Duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & no temperature output CO2: 0 to 2000 or 0 to 5000 PPM (depending on model)
Relative humidity: 0 to 100%
Temperature: 32 to 122°F (0 to 50°C)		 - ±40 PPM + 3% of reading (CO2)
±2% (RH)		 5.6 oz (158.8 g) 16 to 35 VDC / 19 to 28 VAC 32 to 122°F (0 to 50°C) 2 minutes for 99% step change - - - Limits: 10 to 95% RH (non-condensing) - Current: 4 to 20 mA (max 500 Ω)
Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω)
Relay: SPST NO 2A @ 30 VDC
RTD or thermistor per r-t curves (depending on model)		 CE Single-beam, dual-wavelength NDIR Duct mount: NEMA 4X (IP66) for housing only
Wall mount: IP20		 - -
Dwyer Instruments CDWP-02W-C5 | Industrial CO2 Transmitter | 0-2000 PPM range | Wall mount | With 5-8mm cable gland CO2: 0 to 2000, 0 to 5000, or 0 to 10000 PPM (depending on model) - CO2: ±40 PPM + 3% of reading (2000 PPM); ±50 PPM + 5% of reading (5000 PPM); ±50 PPM + 10% of reading (10000 PPM) 26.24 oz (744 g) 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 300 s (t63) (2000 and 5000 PPM); 2 min for 90% step change (10000 PPM) - - - Limits: 10 to 95% RH (non-condensing, 2000 and 5000 PPM); 0 to 85% RH (non-condensing, 10000 PPM) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)		 CE NDIR IP54 - -
Dwyer Instruments CDWP-05W-C5 | Industrial CO2 Transmitter | 0-5000 PPM range | Wall mount | With 5-8mm cable gland CO2: 0 to 2000, 0 to 5000, or 0 to 10000 PPM (depending on model) - CO2: ±40 PPM + 3% of reading (2000 PPM); ±50 PPM + 5% of reading (5000 PPM); ±50 PPM + 10% of reading (10000 PPM) 26.24 oz (744 g) 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 300 s (t63) (2000 and 5000 PPM); 2 min for 90% step change (10000 PPM) - - - Limits: 10 to 95% RH (non-condensing, 2000 and 5000 PPM); 0 to 85% RH (non-condensing, 10000 PPM) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)		 CE NDIR IP54 - -
Dwyer Instruments CDWP-10W-C1 | Industrial CO2 Transmitter | 0-10 |000 PPM range | Wall mount | With 1-6 mmcable gland CO2: 0 to 2000, 0 to 5000, or 0 to 10000 PPM (depending on model) - CO2: ±40 PPM + 3% of reading (2000 PPM); ±50 PPM + 5% of reading (5000 PPM); ±50 PPM + 10% of reading (10000 PPM) 26.24 oz (744 g) 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 300 s (t63) (2000 and 5000 PPM); 2 min for 90% step change (10000 PPM) - - - Limits: 10 to 95% RH (non-condensing, 2000 and 5000 PPM); 0 to 85% RH (non-condensing, 10000 PPM) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)		 CE NDIR IP54 - -
Dwyer Instruments CDWP-10W-C5 | Industrial CO2 Transmitter | 0-10 |000 PPM range | Wall mount | With 5-8mm cable gland CO2: 0 to 2000, 0 to 5000, or 0 to 10000 PPM (depending on model) - CO2: ±40 PPM + 3% of reading (2000 PPM); ±50 PPM + 5% of reading (5000 PPM); ±50 PPM + 10% of reading (10000 PPM) 26.24 oz (744 g) 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 300 s (t63) (2000 and 5000 PPM); 2 min for 90% step change (10000 PPM) - - - Limits: 10 to 95% RH (non-condensing, 2000 and 5000 PPM); 0 to 85% RH (non-condensing, 10000 PPM) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)		 CE NDIR IP54 - -
Dwyer Instruments CDTC-2N000 | Communicating carbon dioxide transmitter with temperature output | 2000 PPM range and North American housing 0 to 2000 or 5000 PPM CO2 (depending on model); 32 to 122°F (0 to 50°C) temperature - ±40 PPM ±3% of reading carbon dioxide
Temperature: ± 1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC or 10-30 VAC 32 to 122°F (0 to 50°C) <2 minutes, diffusion, carbon dioxide - - - Limits: 10 to 95% RH (non-condensing) - 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol BTL, CE NDIR (non-dispersive infrared)
15 year light source		 - - -
Dwyer Instruments CDTC-2N000-LCD | Communicating carbon dioxide transmitter with temperature output | 2000 PPM range | North American housing and LCD display 0 to 2000 or 5000 PPM CO2 (depending on model); 32 to 122°F (0 to 50°C) temperature - ±40 PPM ±3% of reading carbon dioxide
Temperature: ± 1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC or 10-30 VAC 32 to 122°F (0 to 50°C) <2 minutes, diffusion, carbon dioxide - - - Limits: 10 to 95% RH (non-condensing) - 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol BTL, CE NDIR (non-dispersive infrared)
15 year light source		 - - -
Dwyer Instruments CDTC-5N000 | Communicating carbon dioxide transmitter with temperature output | 5000 PPM range and North American housing 0 to 2000 or 5000 PPM CO2 (depending on model); 32 to 122°F (0 to 50°C) temperature - ±40 PPM ±3% of reading carbon dioxide
Temperature: ± 1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC or 10-30 VAC 32 to 122°F (0 to 50°C) <2 minutes, diffusion, carbon dioxide - - - Limits: 10 to 95% RH (non-condensing) - 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol BTL, CE NDIR (non-dispersive infrared)
15 year light source		 - - -
Dwyer Instruments CDTC-5N000-LCD | Communicating carbon dioxide transmitter with temperature output | 5000 PPM range | North American housing and LCD display 0 to 2000 or 5000 PPM CO2 (depending on model); 32 to 122°F (0 to 50°C) temperature - ±40 PPM ±3% of reading carbon dioxide
Temperature: ± 1°C @ 25°C		 4.4 oz (125 g) 10-42 VDC or 10-30 VAC 32 to 122°F (0 to 50°C) <2 minutes, diffusion, carbon dioxide - - - Limits: 10 to 95% RH (non-condensing) - 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol BTL, CE NDIR (non-dispersive infrared)
15 year light source		 - - -
Dwyer Instruments CDWP-05W-C1 | Industrial CO2 Transmitter | 0-5000 PPM range | Wall mount | With 1-6mm cable gland CO2: 0 to 2000, 0 to 5000, or 0 to 10000 PPM (depending on model) - CO2: ±40 PPM + 3% of reading (2000 PPM); ±50 PPM + 5% of reading (5000 PPM); ±50 PPM + 10% of reading (10000 PPM) 26.24 oz (744 g) 16-35 VDC or 19-28 VAC 32 to 122°F (0 to 50°C) 300 s (t63) (2000 and 5000 PPM); 2 min for 90% step change (10000 PPM) - - - Limits: 10 to 95% RH (non-condensing, 2000 and 5000 PPM); 0 to 85% RH (non-condensing, 10000 PPM) - Current: 4-20 mA (max. 500 Ω)
Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω)		 CE NDIR IP54 - -
Dwyer Instruments CMT-DN-D | Duct mount carbon monoxide transmitter | 4-20 mA and 2-10 VDC outputs | With display 0 to 125 PPM CO - ±2.5% of reading 5.7 oz (161.6 g) 24 VDC/VAC at 100 mA - Less than 60 seconds typical for 90% step change - - - - - Current/Voltage: 4 to 20 mA and 2 to 10 VDC
Optional Relay: (2) SPDT 1 Amp dry contact		 - Electrochemical (2 to 3 year expected life typical) - - 7500 square feet (max)
Dwyer Instruments CMT-DN | Duct mount carbon monoxide transmitter | With 4-20 mA and 2-10 VDC outputs 0 to 125 PPM CO - ±2.5% of reading 5.7 oz (161.6 g) 24 VDC/VAC at 100 mA - Less than 60 seconds typical for 90% step change - - - - - Current/Voltage: 4 to 20 mA and 2 to 10 VDC
Optional Relay: (2) SPDT 1 Amp dry contact		 - Electrochemical (2 to 3 year expected life typical) - - 7500 square feet (max)
Dwyer Instruments GSTA-C | Carbon Monoxide Transmitter with universal current/voltage outputs CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-C-D | Carbon Monoxide Duct Mount Transmitter with universal current/voltage outputs CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-C-D-FC | Carbon monoxide duct mount transmitter with universal current/voltage outputs | Includes factory calibration certificate CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-C-FC | Carbon monoxide transmitter with universal current/voltage outputs | Includes factory calibration certificate CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-C-LCD | Carbon Monoxide Transmitter with universal current/voltage outputs | LCD display CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N | Nitrogen Dioxide Transmitter with universal current/voltage outputs CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N-D | Nitrogen Dioxide Duct Mount Transmitter with universal current/voltage outputs CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N-D-FC | Nitrogen duct mount transmitter with universal current/voltage outputs | Includes factory calibration certificate CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N-FC | Nitrogen transmitter with universal current/voltage outputs | Includes factory calibration certificate CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N-LCD | Nitrogen Dioxide Transmitter with universal current/voltage outputs | LCD display CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments GSTA-N-LCD-FC | Nitrogen transmitter with universal current/voltage outputs | LCD display | Includes factory calibration certificate CO: Switch selectable 200 or 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: ±2% FS
NO2: ±3% FS, at the time of calibration		 1 lb (.45 kg) Current output: 10-35 VDC
Voltage output: 15-35 VDC or 15-29 VAC		 Ambient: -4 to 122°F (-20 to 50°C) <45 seconds to 90% CO, <25 to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knocks out for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0 to 10 V@ 5 mA; Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V; Switch selectable normal or reverse output Drift: <5% per year in air CE Field replaceable electrochemical, 2 years typical lifespan IP64 Via pushbutton, using optional A-449 display 5000 to 7500 sq ft typical
Dwyer Instruments CMT200 | Carbon Monoxide Transmitter | 0 to 200 PPM CO | 4 to 20 mA/2 to 10 VDC outputs. 0 to 200 ppm - ±2% FS at the time of calibration 0.28 lb (0.11 kg) Current Output: 18 to 28 VDC
Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected		 -4 to 122°F (-20 to 50°C) <45 s. to 90% of final value For best sensor life, 32 to 68°F (0 to 20°C) UV resistant polycarbonate Electrical: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting Limits: 15 to 90% RH constant
0 to 99% RH intermittent		 - Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 kΩ) CE Field replaceable electrochemical, 4 year typical lifespan - - 5000 to 7000 sq. ft. typical
Dwyer Instruments CMT200-FC | Carbon monoxide transmitter | 0-200 PPM CO | 4-20 mA/2-10 VDC outputs | Includes factory calibration certificate 0 to 200 ppm - ±2% FS at the time of calibration 0.28 lb (0.11 kg) Current Output: 18 to 28 VDC
Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected		 -4 to 122°F (-20 to 50°C) <45 s. to 90% of final value For best sensor life, 32 to 68°F (0 to 20°C) UV resistant polycarbonate Electrical: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting Limits: 15 to 90% RH constant
0 to 99% RH intermittent		 - Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 kΩ) CE Field replaceable electrochemical, 4 year typical lifespan - - 5000 to 7000 sq. ft. typical
Dwyer Instruments CMT200-R | Carbon Monoxide Transmitter | 0 to 200 PPM CO | 4 to 20 mA/2 to 10 VDC outputs | Rectangular enclosure 0 to 200 ppm - ±2% FS at the time of calibration 0.28 lb (0.11 kg) Current Output: 18 to 28 VDC
Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected		 -4 to 122°F (-20 to 50°C) <45 s. to 90% of final value For best sensor life, 32 to 68°F (0 to 20°C) UV resistant polycarbonate Electrical: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting Limits: 15 to 90% RH constant
0 to 99% RH intermittent		 - Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 kΩ) CE Field replaceable electrochemical, 4 year typical lifespan - - 5000 to 7000 sq. ft. typical
Dwyer Instruments CMT200-R-FC | Carbon monoxide transmitter | 0-200 PPM CO | 4-20 mA/2-10 VDC outputs | Rectangular enclosure | Includes factory calibration certificate 0 to 200 ppm - ±2% FS at the time of calibration 0.28 lb (0.11 kg) Current Output: 18 to 28 VDC
Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected		 -4 to 122°F (-20 to 50°C) <45 s. to 90% of final value For best sensor life, 32 to 68°F (0 to 20°C) UV resistant polycarbonate Electrical: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting Limits: 15 to 90% RH constant
0 to 99% RH intermittent		 - Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 kΩ) CE Field replaceable electrochemical, 4 year typical lifespan - - 5000 to 7000 sq. ft. typical
Dwyer Instruments GSTC-C | Carbon Monoxide Transmitter with BACnet & Modbus Communication CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-C-D | Carbon Monoxide Duct Mount Transmitter with BACnet & Modbus Communication CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-C-D-FC | Carbon monoxide duct mount transmitter with BACnet & Modbus® communication | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-C-FC | Carbon monoxide transmitter with BACnet & Modbus® communication | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-C-LCD | Carbon Monoxide Transmitter with BACnet & Modbus Communication with Integral LCD Display CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-C-LCD-FC | Carbon monoxide transmitter with BACnet & Modbus® communication | LCD display | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N | Nitrogen Dioxide Transmitter with BACnet & Modbus Communication CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N-D | Nitrogen Dioxide Duct Mount Transmitter with BACnet & Modbus Communication CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N-D-FC | Nitrogen Dioxide duct mount transmitter with BACnet & Modbus® communication | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N-FC | Nitrogen Dioxide transmitter with BACnet & Modbus® communication | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 Drift: <5% per year in air 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol CO: 2% FS
NO2: 3% FS, at the time of calibration		 CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N-LCD | Nitrogen Dioxide Transmitter with BACnet & Modbus Communication with Integral LCD Display CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments GSTC-N-LCD-FC | Nitrogen Dioxide duct mount transmitter with BACnet & Modbus® communication | LCD display | Includes factory calibration certificate CO: 0 to 500 PPM
NO2: 10 PPM		 CO: 1 PPM
NO2: 0.1 PPM		 CO: 2% FS
NO2: 3% FS, at the time of calibration		 1 lb (0.45 kg) 10-36 VDC or isolated 21.6-33 VAC, 5.7 mA @ 24 VDC -4 to 122°F (-20 to 50°C) <45 s to 90% CO, <25 s to 90% NO2 For best sensor life, 32 to 68°F (0 to 20°C) UV resistant glass filled polycarbonate Electrical: Removable terminal block, knock outs for conduit fitting Limits: 15 to 90% RH constant; 0 to 99% RH intermittent BACnet MS/TP, MODBUS® RTU, or MODBUS® ASCII (switch selectable) communication protocol Drift: <5% per year in air CE Field replaceable electrochemical, 4 years typical lifespan IP64 Via pushbutton, using optional A-449 display. Zero only via BACnet or MODBUS® communication protocol 5000 to 7500 sq ft typical
Dwyer Instruments CMS300 | Carbon monoxide transmitter & switch | 0-300 PPM | 4-20 mA/2-10 V (maximum load 2K Ω) 0-300 PPM 1 PPM ±5 PPM or 5% of reading for 0-300 PPM (whichever is greater) 1 lb (0.45 kg) - - <45 seconds to 90% of final value For best sensor life, 32°F to 68°F (0 to 20°C) UV resistant glass filledpolycarbonate - Range: 15-90% RH constant; 0-99% RH intermittent - Drift: <5% per year in air Sensor is UL recognized component for ANSI/UL-2034, UL-2075, E340403, CE Electrochemical, 5 years typical lifespan IP64 - 7,500 ft² (700 m²) or 50 ft (15 m) radius
Dwyer Instruments CMS300-FC | Carbon monoxide transmitter & switch | 0-300 PPM | 4-20 mA/2-10 V (maximum load 2K Ω) | Includes factory calibration certificate 0-300 PPM 1 PPM ±5 PPM or 5% of reading for 0-300 PPM (whichever is greater) 1 lb (0.45 kg) - - <45 seconds to 90% of final value For best sensor life, 32°F to 68°F (0 to 20°C) UV resistant glass filledpolycarbonate - Range: 15-90% RH constant; 0-99% RH intermittent - Analog: Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (maximum load 2 kΩ) Sensor is UL recognized component for ANSI/UL-2034, UL-2075, E340403, CE Electrochemical, 5 years typical lifespan IP64 - 7,500 ft² (700 m²) or 50 ft (15 m) radius
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Gagemaker

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