The air quality meter is a measuring device for orienting measurement of temperature and relative humidity. With a temperature measuring range of -10 ... 50 °C and a humidity measuring range of 20 ... 90% RH the thermo-hygrometer covers a wide range of tasks. The thermo-hygrometer is used, for example, to monitor climatic conditions at workplaces, in cold stores or in the environment.

In addition to the normal measuring mode, the air quality meter has a MIN / MAX function. This means that the thermo-hygrometer can continuously display the largest or smallest measured value. The low power consumption of <10 µA guarantees a long battery life.