The DHT22, also known as the AM2302, is a reliable sensor for measuring temperature and humidity. This digital module is easy to use and fits into various applications. The sensor combines a capacitive humidity sensor with a thermistor. This duo guarantees accurate measurements of the ambient air. The DHT22 is designed for hobbyists and professionals. It is a favorite in weather stations, smart homes and agricultural projects. A small limitation is the measurement frequency. The sensor refreshes data every 2 seconds. This ensures reliable results without overloading the sensor.