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The TR3210 is a high accuracy, Electrochemical gas sensor that can be factory configured to measure a wide range of gases applicable to health and safety applications. This version is meant for NO2.


Key Features

  • Utilizes the small, distinctive AirTest TR2000 enclosure that is the size of a single gang electrical box.
  • Multi-Parameter building control output functionality provides BACnet, Modbus and Lonworks FT.
  • TR2000-DIGI can power and connect to a standard Analog TR3210-NO2 and deliver the digital signal of choice to the control system.
  • CO sensing element is certified to UL2075.
  • Selectable baud rate adjustment.
  • Calibration pots for zero and span calibration.
  • Replacement factory-calibrated assembly available.
  • Enclosure, appearance and calibration identical to the TR2000 transmitter.


  • Indoor automobile parking, service garages, arenas, fire stations, loading docks, warehouses, boiler rooms, secret underground bases.
  • Designed to integrate with control systems utilizing BACnet MSTP, BACnet IP/FT, Modbus RS485, LonWorks FT, utilizing the Adesto 6050 Smart Transceiver microprocessor.
  • Suitable for measuring carbon monoxide and temperature. Optionally, Airtest’s TR3210-NO2 with an analog output can provide a network signal and draw power from the TR2000-DIGI.

Model TR3210-NO2

  • Optional NO2 add-on transmitter provides Multi-Parameter digital output through the TR2000-DIGI.
  • TR2000-Digy also provides power for the TR3210-NO2
  • Temp Range: -40 to 140°F (-40 to 60°C)
  • Output: 4-20 mA (loop powered)
    • Output: 4-20 mA (loop powered)
    • Measures: 0-10 ppm
    • Calibration: 1 year recommended

Model TR3210-NO2-Lon

  • Same performance as TR3210-NO2 above.
  • LonWorks® Network Variabies: nviRequest, nciMaxStsSendT, nvoStatus
  • LonWorks® Sensor Variables: nvoSensorValue (% of range), nvoSensorInv, nciMiniDelta, nciSnsrSmplRate


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