GD233 - CO2 Sensor

Infrared single poin, standalone CO2 gas monitor. Level indication LEDs with 2 x Alarm relys and 4-20mA analogue output 24V DC.


Stand alone, single point CO2 detector and alarm unit, ideal for small instulations. The GD233 operates on tried and tested infrared absorption principle ensuring both accuracy and reliability.

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The GD233 CO2 Sensor is used for diffusion sensing applications. These are applications in which the sensor continuously monitors that part of the environment with which it is in contact and the gas diffuses through the sensor’s optical path. This technical manual covers the use of the GD233 CO2 Sensor as a diffusion type sensor.



  • Weight: 0.5kg
  • Height: 60mm
  • Width: 100mm
  • Length: 150mm

Power Requirements

  • Input Voltage: 24V DC
  • Power Consumption: 250mA
  • Max Switching Current: 2A
  • Power Input: 4-20mA

Time Info

  • Life Expectancy: 5 years
  • Warranty: 12 Months
  • Rating: IP43
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