DHT11 digital temperature and humidity sensor is a combined temperature and humidity sensor with calibrated digital signal output. It uses special digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability. The sensor consists of a resistive humidity sensing element and an NTC temperature measuring element, and is connected to a high-performance 8-bit MCU. Therefore, the product has the advantages of excellent quality, fast response speed, strong anti-interference ability, and high cost performance.