DHT22 Temperature and Humidity Sensor is an output calibrated digital signal. It applies exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing element is connected with 8-bit single-chip computer.
Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of program in OTP memory. When the sensor is detecting, it will cite coefficient from memory.
DHT22 Temperature and Humidity Sensor - General Specifications
Full range temperature compensated
Relative humidity and temperature measurement
Calibrated digital signal
Outstanding long-term stability
Extra components not needed
Long transmission distance, up to 100 meters
Low power consumption
DHT22 Temperature and Humidity Sensor - Technical Specifications