2Pcs AM2301 DHT21 Digital Temperature and Humidity Sensor Module

AM2301 humidity sensitive capacitor digital temperature and humidity module is a temperature and humidity composite sensor with calibrated digital signal output. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. The sensor includes a capacitive humidity sensing element and a high-precision temperature measuring element, and is connected to a high-performance 8-bit microcontroller. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability and high cost performance. Each sensor is calibrated in an extremely accurate humidity calibration chamber.

Calibration coefficients are stored in the microcontroller in the form of programs, and these calibration coefficients are called in the process of detecting signals inside the sensor. The standard single bus interface makes system integration easy and fast. The ultra-small size, extremely low power consumption, and the signal transmission distance can reach more than 20 meters, making it the best choice for various applications and even the most demanding applications. The product is 3-lead (single bus interface) and easy to connect. Special packaging forms can be provided according to user requirements.