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Low maintenance Carbon dioxide (CO2) gas detector available in ppm or %vol with Plug & Play Smart Sensor Technology


Key Features

  • One 4-20 mA analog output or user in the field configurable BACnet® MS/TP RS-485 or Modbus® RTU RS-485 digital output signal to a BAS
  • Easy Plug & Play Smart Sensor replacement at end of life, comes pre-calibrated
  • Bright LCD display
  • USB port for configuration changes and firmware upgrades
  • Optional RH & Temperature sensor (Option -RHT)
  • Optional low temperature operation package (Option -LT)
  • Standard water / dust tight, corrosion resistant enclosure (drip proof); IP54 rated with optional splash guard (Option -S) installed
  • 24 VDC or VAC power (ground reference)
  • RoHS compliant circuit boards

cGas Detector Carbon Dioxide (CO2) Transmitter

  • Infrared Sensor

    Carbon dioxide (CO2)




    Black ABS / Polycarbonate, corrosion resistant


    Copper coated interior to reduce RF interference


    IP54 rated with splash guard installed (Option -S)


    400 g / 14 oz


    127 x 127 x 76 mm / 5.0 x 5.0 x 3.0 inches

    User Interface



    2-line by 16 character graphic LCD, black on green

    Push Buttons

    Initiate calibration and menu options with internal UP, DOWN and ENTER push buttons

    USB Port

    Internal port for USB memory stick for field configuration updated / firmware upgrades



    Analog Output (CGAS-A models)

    One linear 4 - 20 mA analog

    Digital Output (CGAS-D models)

    User configurable in the field, BACnet® MS/TP (version 1 rev 14) RS-485 or Modbus® RTU (version 1.1b3) RS-485

    (user configurable in the field)



    Power Requirement

    16-30 VDC, 3 W, Class 2


    12-27 VAC, 50-60 Hz, 3 VA, Class 2

    Analog Wiring (CGAS-A models)

    VDC or VAC (ground referenced) 4-conductor shielded 16 AWG stranded within conduit, network wiring (daisy-chain)


    Automatic resetting thermal

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