Model A2G-80

Air Quality Sensor A2G-80, air2guide

Selected documents
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  • For the measurement of indoor air quality
  • The air quality sensor detects oxidizing gases and vapors such as body odor, tobacco smoke and evaporations from materials (furniture, carpets, coats of paints, glues etc.)
  • In applications where air quality is essential, e.g. buildings, offices, class rooms, kitchens etc.

Special Features

  • The set point for the required air quality can be preset on installation
  • Low consumption, reduced energy costs
  • Standard offering includes mounting flange


Measuring principle
The sensor changes its conductivity proportionally with the number of molecules of reduced gases. The associated output voltage of the measuring element is amplified accordingly from 0 … 10 V. The greater the output signal of the sensor (0 … 10 V), the worse the air quality. Mixed-gas sensors are broad band, meaning the result of the sensor cannot be used to conclude neither the type of the gas not its concentration.

The sensor cannot differentiate between pleasant and unpleasant smells. It is the people in the area who must ultimately decide whether they are satisfied with the air quality.

Design standards
In accordance with EN 60730-1:2002, CE conformity
2004/108/EC (electromagnetic compatibility)
2001/95/EC (product safety)

Supply voltage
DC 15 ... 24 V / AC 24 V ± 10 %

Power input
1.2 W / 2.2 VA

Output signal
0 … 10 V (3-wire), min. load 10 kΩ

Operating temperature
Ambient: -4...+122°F

Humidity range
Max. 85 % r.h. (non-condensing)

Ingress protection
IP 20 per EN 60529 / IEC 592 (with case)

approx. 5.2 oz.