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O2 Industrial Gas Detector

Industrial O2 Gas Detector l CO2Meter
Regular price $2,199.00

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*PLEASE NOTE: For proper operation of the CM-900 series industrial gas detectors, a CM-900-CBL or CM-900-CON MUST be purchased with the device*

The CM-902 O2 Industrial Gas Detector is designed to protect individuals working near hazardous gases like nitrogen, argon, chlorine, propane, nitrous oxide, or helium in confined spaces. This device also features an industrial enclosure designed specifically for harsh environments and wash-down applications.


  • Monitors 0-23% O2 measurements
  • Provides instant audible and visual alarms of potential leaks
  • Designed to meet CGA, OSHA, and NIOSH standards for gas safety
  • User configurable 3-relays dependent upon application
  • 4-20mA to communicate with Building Management System (BMS)




  • O2 Measurement Range: 0-23%
  • Accuracy: +/-200ppm or +/-10% reading 
  • Pressure Dependence: built in barometer (50 to 110 kPa)
  • Response Time: <2min by 90% 
  • Alarms: 19.5%, 16.5%, and 12% O2 (configurable)
  • Alarm Relays: 3
  • Alarm Response Time: < 60 seconds
  • Sound Alarm: 80db@10cm 
  • Operating Temperature: -50°C to 50°C (-58°F to 122°F) (O2)
  • Warm-Up Time: <60 seconds at 22°C 
  • Calibration: Manual with test gas or factory calibration
  • Dimensions: 8.25 in x 6.25 in x 3 in
  • Weight: 1.5 lbs (monitor only)
  • Sensor Life Expectancy: >15 years


  • Power Supply: 110-220VAC 50/60 Hz to 12VDC Power Adapter
  • 24VDC hard-wired power option (cable included)
  • Power Consumption: 3 Watts
  • 6VDC battery backup connections
  • Relays: Peak Current < 2A @ 30VDC or 250VAC, SPDT
  • Relay Color Coding: 
    • Red & White = Normally Open
    • Blue & White = Normally Closed


  • CM-1027 add-on kit includes 2 extension strobe lights and cables


    • Data Sheets

    • Manuals

    • Technical Documents

    • Videos

    • Additional Resources

    • Case Studies

    Customer Reviews

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    "Easy to install, easy to set up, and easy calibration - just what I was looking for."

    - Phillip Farrar
    Water Plant Superintendent

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