DHT22 Sensor module

The DHT22 Digital Temperature and Humidity Sensor Module AM2302 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin.


  1. High precision
  2. Capacitive type
  3. Full range temperature compensated
  4. Relative humidity and temperature measurement
  5. Calibrated digital signal
  6. Outstanding long-term stability
  7. Extra components not needed
  8. Long transmission distance
  9. Low power consumption
  10. 4 pins packaged and fully interchangeable
Weight 7 g
Dimensions 4 × 1.5 × 1 cm
Operating Voltage

3 ~ 5.5V

Accuracy resolution


Humidity range


Temperature range



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