Our duct air quality sensors are designed to measure the air quality in air ducts of heating, ventilation and air conditioning systems.

The measured content includes VOC, CO and CO2 and can also include humidity and temperature.

We also have a range of fine dust PM2.5 and PM10 sensors.

The sensor outputs are 0...10V or 4...20mA.

Please refer to the relevant data sheets for detailed specifications.

Duct Air Quality Sensors

Air Quality (VOC) Duct Sensors - GDI 1
Duct Air Quality Sensor
GDI1.A..
Duct Air Quality (VOC) Sensor
Power Supply AC/DC 24V
Output: 0...10V
Measuring Range:
0...100% VOC
Immersion length 100mm &150mm
Air Quality (CO2) Duct Sensors - GDI 1
Duct Air Quality Sensor
GDI1.AE
Duct Air Quality (C02) Sensor
Power Supply AC/DC 24V
Output: 0...10V
Measuring Range:
0...2,000PPM (CO2)
Immersion length 150mm
Air Quality (CO) Duct Sensors - GDI 1
Air Quality CO Sensor
GDI1.M...
Duct Air Quality (C0) Carbon Monoxide Sensor
Power Supply AC/DC 24V
 
Output:
0...10V or 4...20mA
Measuring Range:
0...100PPM or
0...400PPM
Immersion length 140mm
Air Quality (CO2) & Temperature Duct Sensors - CDI 5
Duct Air Quality Sensor
CDI5.CA
Duct Air Quality (C02) & Temperature Sensor
Power Supply AC/DC 24V
Output:
CO2 - 0...10V
Temperature 0...10V
Measuring Range:
0...2,000PPM (CO2)
0...50C Temperature
Immersion length 180mm
Air Quality (CO2) Humidity & Temperature Duct Sensors - CDI 5
Duct Air Quality Sensor
CDI5.FB
Duct Air Quality (C02) Humidity & Temperature Sensor
Power Supply AC/DC 24V
Output:
CO2 - 0...10V Humidity 0...10V
Temperature 0...10V
Measuring Range:
0...2,000PPM (CO2)
0...100% rel Humidity
0...50C Temperature
Immersion length 180mm
Air Quality (PM2.5) Fine Dust Duct  Sensors - GDI 1
Air Quality PM2.5 Fine Dust Sensor
GDI1.RB
Duct Air Quality (PM 2.5) Fine Dust Sensor
Power Supply AC/DC 24V
Output:
0...10V or 4...20mA
Measuring Range:
0...500ug/m3
Immersion length 125mm