Series CMT200 Carbon Monoxide Transmitter

Current/Voltage Selectable Output, 200 PPM Range

The SERIES CMT200, Carbon Monoxide Transmitter provides a field selectable current or voltage output that is proportional to the gas concentration in underground parking garages, vehicle maintenance facilities, or mechanical rooms. A field replaceable, electrochemical sensor provides accurate readings for up to 4 years with proper calibration. Field calibration can be done by using Model GCK-200CO-2000CO2 calibration gas, Model A-507A calibration adapter, and the on board span and zero potentiometers.

Product Applications

  • Garage ventilation
  • Mechanical room monitoring

Models & Ordering

Model Description Usually Ships Price Order
Ships: Consult Factory
Price: $120.00
Carbon Monoxide Transmitter, 0 to 200 PPM CO, 4 to 20 mA/2 to 10 VDC outputs. Consult Factory $120.00 Order
Ships: Next Day
Price: $125.00
Carbon Monoxide Transmitter, 0 to 200 PPM CO, 4 to 20 mA/2 to 10 VDC outputs, rectangular enclosure Next Day $125.00 Order


Field replaceable electrochemical, 4 year typical lifespan.
0 to 200 ppm.
Coverage Area:
5000 to 7000 sq. ft. typical.
±2% FS at the time of calibration.
Output Drift:
<5% per year in air.
Temperature Limits:
-4 to 122°F (-20 to 50°C).
Storage Temperature:
For best sensor life, 32 to 68°F (0 to 20°C).
Humidity Limits:
15 to 90% RH constant; 0 to 99% RH intermittent.
Response Time:
<45 s. to 90% of final value.
15 turn span and zero adjustment potentiometers.
UV resistant polycarbonate.
Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 KΩ).
Power Requirements:
Current Output: 18 to 28 VDC;
Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected.
Electrical Connection:
Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting.
0.28 lb (0.11 kg).
Agency Approvals:


  • Field selectable current or voltage outputs
  • Replaceable sensor
  • Field calibration kits


Model Number Description Usually Ships Price Order
Gas Calibration Kit <br><b>(GROUND SHIPMENTS ONLY)</b> GCK-200CO-2000CO2 Gas Calibration Kit
Next Day $345.00 Order
Replacement Carbon Monoxide Sensor for GSTA Series, Model CMT200 A-505 Replacement Carbon Monoxide Sensor for GSTA Series, Model CMT200 2-3 Weeks $50.00 Order
A-507A Calibration adapter Next Day $35.00 Order


Product Literature


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Product Data Sheet



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