Humidity and Temperature Sensor - DHT20

Description
The DHT20 is a low cost humidity and temperature sensor with a I2C digital output protocol. It can be applied to HVAC， dehumidifier， automatic control， data loggers， weather stations， and many other projects. The sensor is calibrated and doesn't require extra components so you can get right to measuring relative humidity and temperature.
Features
Supply Voltage：2.2-5.5V
Communication：Standard I2C Protocol
Humidity from 0-100% RH
Typical accuracy：RH：±3%， T：±0.5℃
-40 - 80 degrees C temperature range