DHT11 digital temperature and humidity sensor 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 resistive humidity sensing element and an NTC temperature measuring element, and is connected with a high-performance 8-bit single-chip microcomputer. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability, and high cost performance. In addition, the product can be used in HVAC, dehumidifier, testing and inspection equipment, consumer products, automobiles, automatic control, data loggers, weather stations, home appliances, humidity regulators, medical treatment, and other related humidity detection and control.

? Can detect the humidity and temperature of the surrounding environment
? The sensor adopts DHT11, which supports single bus and I2C communication
? Humidity measurement range: 20%-95% (range of 0-50 degrees) Humidity measurement error: +-5%
? Temperature measurement range: 0 degrees -50 degrees Temperature measurement error: +-2 degrees
? Working voltage 3.3V-5V
? output form: digital output
? With fixing bolt holes for easy installation
? Power indicator: red

Module interface description (3-wire system) :
? VCC external 3.3V-5V
? GND External GND
? DO small board switch digital output interface, connect to the IO port of the single-chip microcomputer