AQ 20

Sensor module for fast and reliable detection of VOCs (volatile organic compounds) and CO2 in ambient air. The gas concentration is displayed by the evaluation unit as CO2 (ppm) and TVOC (ppb) quasi as a "relative equivalent". The CAPBs® measuring unit can trigger a visual and an audible signal. The alarm threshold can be adjusted as required.


  • Detection of leaks in conjunction with hazardous substances
  • Redundant measurement in conjunction with PID measurements
  • Evaluation of the air quality in closed rooms (e.g. in schools, offices, conference rooms, libraries, etc)

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