DHT22 Sensor: Temperature and Humidity -4 pins

DHT22  Temperature & Humidity Sensor ,suitable for Arduino / Raspberry Pi. Can be use to detect the temperature and humidity of the surrounding environment. High reliability and excellent long-term stability.

DHT22 Details :
Humidity Range: 0-100% RH
Humidity Accuracy: ± 2-5% RH
Temperature Range: -40 to 80 °C
Temperature Accuracy: ±0.5% °C
Operating Voltage: 3V to 5.5V

Technical spec
Model: DHT22
Power supply: 3.3-6V DC
Output signal: digital signal via single-bus
Sensing element: Polymer capacitor
Operating range:  humidity 0-100%RH; temperature -40~80Celsius
Accuracy: humidity +-2%RH(Max +-5%RH); temperature <+-0.5Celsius
Resolution or sensitivity:  humidity 0.1%RH; temperature 0.1Celsius
Repeatability:  humidity +-1%RH; temperature +-0.2Celsius
Humidity: hysteresis +-0.3%RH
Long-term Stability: +-0.5%RH/year
Sensing period:  Average: 2s

Pin Function
1 VDD—-power supply
2 DATA–signal
3 NULL
4 GND

Packing List

x1 unit DHT22 sensor