Room Carbon Dioxide and Relative Humidity / Temperature Sensor

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High quality room CO2 sensor and/or CO2 with Relative Humidity and passive temperature sensor in an attractive low-profile plastic enclosure.

Dual channel technology and a solid state infrared source ensures long lifetime, excellent accuracy and repeatability with low drift and very fast start up. Very accurate CO2 measurement from 400-10,000 ppm (CO2) and 0-100% (RH) with 2% accuracy.

Standard versions complete with on board DIP switches that provide output signal change in the field for 0-5V, 0-10V and 4-20mA. 

Fixed analog outputs or digital BACnet or MODBUS are also available for custom orders.


  • CO2 or Combination CO2/RH/Temp options

  • Dual beam infrared sensing technology (NDIR)

  • Quick Connect wire terminals

  • Passive NTC thermistors and RTD elements available

  • Standard Analog Output Signals 0-5V, 0-10V, 4-20mA for both CO2 and in CO2/RH combo options

  • BACnet or MODBUS outputs available for custom orders

  • 0-2000 ppm, 0-5000 ppm or 0-10,000 ppm measurement range

  • Low profile ABS housing with Insulated back

  • CE & RoHS compliant

  • 5 year limited warranty

  • Made in the USA