




Dwyer Instruments CMT-DN-D | Duct mount carbon monoxide transmitter | 4-20 mA and 2-10 VDC outputs | With display
A carbon monoxide transmitter that reliably detects and transmits low carbon monoxide concentrations inside a loading dock or parking garage is the Series CMT, CMT-DN-D. It is possible to order transmitters in duct mount or wall mount variants. Field-selectable universal current and voltage outputs are compatible with the majority of popular building management controllers. For wall mount variants, there are optional relays and an alert buzzer that can be used to connect straight to an exhaust fan or warning light. Internal potentiometers can be used to field calibrate the Series CMT. Password protection is applied to software settings, including set points for optional relay outputs.

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- Specifications
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Accuracy | +/-2.5% of reading |
Ambient temperature | Operating: -4 to 104°F (-20 to 40°C) |
Coverage Area | 7500 square feet (max) |
Display | Internal: Two line 8-digit alphanumeric LCD |
Operating Humidity Range | 15 to 90% non-condensing |
Output | Current/Voltage: 4 to 20 mA and 2 to 10 VDC Optional Relay: (2) SPDT 1 Amp dry contact |
Power | 24 VDC/VAC at 100 mA |
Range | 0 to 125 PPM CO |
Repeatability | +/-1% of reading |
Response Time | Less than 60 seconds typical for 90% step change |
Sensor Type | Electrochemical (2 to 3 year expected life typical) |
Weight | 5.7 oz (161.6 g) |
- Detects low carbon monoxide concentrations accurately, guaranteeing safety in parking garages and loading docks.
- Available in wall mount and duct mount versions to accommodate various installation needs.
- Internal potentiometers allow for quick and accurate field calibration.
- Suitable for usage in a range of settings, including loading docks, parking garages, and other enclosed locations, where carbon monoxide detection is crucial.
- Constructed to endure severe conditions, guaranteeing enduring dependability and efficiency.
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