CO2 Sensor – NDIR (infra-red), 2%Vol, IP65, analog / digital transmitter

CO2 sensor transmitter with measuring range 0 ~ 2% Vol CO2 or 0 ~ 20,000 ppm, for continuous, online measurement of gaseous CO2 in ambient air. Gold-plated, dual beam infra-red sensor cell, IP65 weather proof protected with linear analog output, it can be installed at any application – cold stores, ripening chamber, controlled atmosphere chamber etc.


CO2 sensor transmitter / detector – 0 ~ 20,000 ppm, IP65, NDIR sensor

online, continuous monitoring of CO2 in %vol or ppm range, infra-red sensor cell, IP65 protection, analog linear output signals, PLC integrable, for cold stores, ripening chambers, poultry farms etc
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Model: GST-CO2-4XXX


GST-CO2 is high accuracy, industrial grade transmitter with gold-plated, dual beam non-dispersive infra-red (NDIR) CO2 sensor cell. It is designed for continuous monitoring of CO2 concentration in ambient air, gas in closed rooms, ducts or open air.

GST-CO2 offers industry standard analog (voltage or current) output, suitable for integration with any process signal controller / PLC system or SCADA. GST-CO2 is housed in polycarbonate UL-V0 certified flame retardant enclosure with IP65 ingress protection. This enable only gas sample to pass through to sensor cell, but no dust and moisture, hence offering long sensor life and high accuracy.

CO2 sensor - analog transmitter for 20,000ppm range, infra-red, IP65 enclosure - cold store, ripening chamber
CO2 sensor – analog transmitter for 20,000ppm range, infra-red, IP65 enclosure – cold store, ripening chamber


Key Features:

  • Continuous, online monitoring
  • No cross-sensitivity due to background gases
  • No effects of humidity, moisture, temperature, radiation, vibrations etc
  • BMS, PLC integrateable
  • Suitable for any application
  • Long expected life

Key Specifications:

  • Measuring range: 0~20,000 ppm or 0~2% Vol/ vol
  • Sensor technology: non-dispersive infra-red sensor cell, Gold plated, dual beam
  • Output: linear, proportional analog (4-20mA, 0-10V) standard
  • Optional: RS485 Modbus RTU serial interface
  • Operating temperature: 0°C to +50°C
  • Low voltage operation 24V DC
  • IP65 ingress protection with hydrophobic and oleophobic filter
  • Wall, ceiling and duct mountable
  • Polycarbonate housing with UL-V0 certified

Applications areas:

  • Cold storage – potatoes, apple, mango, kiwi, banana, etc
  • Controlled atmosphere chamber – kiwi, apples
  • Furnace, heated conveyor belts
  • Incinerators, manufacturing units
  • Mushroom spawning chambers