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3.2.15 The specification of DHT22 temperature sensor:

 

Model

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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

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