The Air Quality 4 Click Board™ is an advanced air quality sensing device that combines multiple metal-oxide sensing elements on a chip to provide detailed information on the air quality parameters. This Click Board™ can output TVOC value readings as well as the CO2 equivalent concentration readings in an indoor environment.
Besides these compensated attributes, the Air Quality 4 Click Board™ can also output raw values of H2 and Ethanol in the air, which can be used to calculate gas concentrations, relative to a reference concentration.