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Air Quality

Air Quality Sensors & Gas Detectors

Shop all Air Quality Sensors at iACS. An air quality sensor is the first line of defense in modern HVAC strategies, providing the real-time data necessary to modulate ventilation and ensure the well-being of building occupants. Whether you are looking for a standard wall-mounted unit for an office, such as the Belimo Room Sensor series, or a robust duct-mounted solution like the Sontay CO2 & RH sensors. To learn more about how these devices fit into a holistic ventilation strategy, read our guide on how to enhance indoor air quality with air handling unit components.

If you are unsure which sensor output or communication protocol, Contact Us for bespoke advice on product selection. Browse the full range at iACS.

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  1. GDOPZT0010 - CAREL GAS DETECTOR - CALIBRATION KIT FOR SMALL EDITION

    SKU: GDOPZT0010

    £159.92 £133.27
  2. 22RTM-18-1 Belimo Room sensor CO₂ / Humidity / Temperature active, 0...5 V, 0...10 V, 2...10 V, MP-Bus, PC, white, RAL 9003

    SKU: 22RTM-18-1

    £204.12 £170.10
  3. 22RTH-18-1 - Belimo Room sensor / Room operating unit Humidity / Temperature active, NFC, 0...5 V, 0...10 V, 2...10 V, 4...20 mA, MP-Bus, PC, white, RAL 9003

    SKU: 22RTH-18-1

    £96.60 £80.50
  4. GS-CO2-S-MS - Sontay Wall Mount CO2 Sensor and Temp. Transmitter, Momentary switch

    SKU: GS-CO2-S-MS

    £242.39 £201.99
  5. GDSRSHCC00 - Carel Gas Detector Small Group 3 Semiconductor Wall Remote

    SKU: GDSRSHCC00

    £746.23 £621.86
  6. GDSRSHFC00 - Carel Gas Detector Small Group 2 Semiconductor Wall Remote

    SKU: GDSRSHFC00

    £746.23 £621.86
  7. GDSRSMXC00 - Carel Gas Detector Small Group 1 Semiconductor Wall Remote

    SKU: GDSRSMXC00

    £746.23 £621.86
  8. GS-CO2-RHT-D - Sontay Duct Mounted CO2, T and RH Sensor 2000ppm

    SKU: GS-CO2-RHT-D

    £420.19 £350.16
  9. GS-CO2-RHT-S - Sontay Wall Mount CO2 Sensor and Temp RH

    SKU: GS-CO2-RHT-S

    £308.98 £257.48
  10. GDSBSMXC00 - GAS DETECTOR SMALL GROUP 1 SEMICONDUCTOR WALL BUILT-IN

    SKU: GDSBSMXC00

    £652.06 £543.38
  11. SD-D - Sontay Duct Smoke Detector

    SKU: SD-D

    £265.84 £221.53
  12. 22DTM-11 - Belimo Duct CO₂, Humidity, Temperature Sensor, L=180 mm, DC 0...10 V, Optional with LCD display, IP65 rated

    SKU: 22DTM-11

    £391.44 £326.20
  13. QPA2002 - Siemens Room CO2/VOC Sensor, 0-10V / 4-20mA Output (Selectable)

    SKU: QPA2002

    £269.99 £224.99
  14. QPA2002D - Siemens Room CO2/VOC Sensor, 0-10V / 4-20mA Output (Selectable), with Display

    SKU: QPA2002D

    £293.99 £244.99
  15. QPM2152/MO - Siemens Duct air quality sensor CO2+temperature+rel. air humidity Modbus

    SKU: QPM2152/MO

    £629.99 £524.99
  16. QPM2150/MO - Siemens Duct air quality sensor CO2+temperature Modbus

    SKU: QPM2150/MO

    £539.99 £449.99
  17. QPM2162 - Siemens Duct air quality sensor CO2+temperature+rel. air humidity

    SKU: QPM2162

    £587.99 £489.99
  18. QPM2100 - Siemens Duct air quality sensor CO2

    SKU: QPM2100

    £371.99 £309.99
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Probe Length
  1. 50 mm 12 items
  2. 150 mm 1 item
Sensor characteristics
  1. Wall Mounted 12 items
  2. Duct Mounted 22 items
Manufacturer
Sensor Type
  1. Temperature and Humidity 1 item
  2. Air Differential Pressure 4 items
  3. Air Quality 34 items
  4. Temp, Humidity, VOC & CO2 1 item
IP rating
  1. IP20 1 item
  2. IP30 14 items
  3. IP54 9 items
  4. IP65 16 items
Product type
  1. Sensors & Stats 27 items
Output Signal
  1. 0..5 Vdc 5 items
  2. 0..10Vdc 27 items
  3. 4..20 mA 10 items
  4. 1 Digital VFC 4 items
  5. 2 Digital VFC 1 item
  6. Modbus RTU - RS485 3 items
Power Supply
  1. 24Vac/Vdc 8 items
  2. 24Vac or 24Vdc/48Vac, 50Hz 10 items
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