Whadda Sensor CM2302 / DHT22 Temperature & Humidity

CM2302 is a temperature and humidity composite sensor. It utilizes dedicated digital acquisition technology and temperature and humidity measurement technology to ensure high reliability and excellent long-term stability. The sensor includes a capacitive moisture sensor and a high-precision NTC temperature sensor, which is connected to a high-performance 8-bit microcontroller to ensure outstanding product quality, fast response, anti-interference capability, and cost-effectiveness. Each sensor is calibrated in a highly accurate humidity calibration chamber. Compared to the DHT11, this sensor is more accurate and operates over a wider range of temperature and humidity, but it is larger and more expensive.