Air Quality Sensor with High Sensitivity to Volatile Organic Compounds (VOCs), Ammonia, and H2S

TGS 2602 – for the detection of Air Contaminants

The sensing element is comprised of a metal oxide semiconductor layer formed on the alumina substrate of a sensing chip together with an integrated heater. In the presence of detectable gas, sensor conductivity increases depending on gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.