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Space CO2 Sensors and Controllers | CDR-RH Room CO2 and Humidity Sensor with Temperature, 0-10V Outputs

Room CO2 and Humidity  Sensor with Temperature, 0-10V Outputs

Datasheet (810kB)

CDR-RH sensors are designed to detect carbon dioxide concentration, temperature and relative humidity in the room spaces. The CO2 sensor calibrate automatically its measurement. The CDR sensors have linear 0..10V signals outputs relating to CO2-concentration, temperature, and humidity. The CDRC sensors have 4..20mA outputs. The sensors can be used for demand controlled ventilation in buildings.

CDR-RH sensors can be installed on wall surface or on a wall mounting box in dry indoor environment. The CDR-RH sensors come with a number of options such as display, passive setpoint, digital output, occupancy detection, lux level measurement and passive resistive sensor elements.

The CDR -RH sensors can also operate as CO2, temperature, humidity or light level controllers modulating analogue outputs, or switching the digital output on based on the setpoints (the digital output are provided by fitting the additional -DO option).


  • 2% Accurate Relative Humidity Measurement
  • Attractive Wall Mounted Room Enclosure (for UK/European/US mounting)
  • Adaptive CO2 Measurement Logic, Self-Calibrating
  • Large Range of Options to Suit Any Applications
  • Built-In Controller Functionality for CO2, Temperature, Humidity and Light Control


Select from LUX-vs-Rotary-Knob-Setpoint-Options:
SP - Active Setpoint Potentiometer Option
Select from Push-Button-Options:
PB - Backlit Push Button Option
Select from Digital-Output-Option:
DO - Digital Output Option
Select from Passive-Temperature-Sensor-Option:
Passive NTC10 Temperature Option
Select from LCD-Display-Option:
LCD - LCD Display Option
Select from Push-Button-Setpoint-Option:
SPB -Active Push Button Setpoint Option  (requires LCD)