This module includes a DHT11 Temperature & Humidity Sensor. It features a temperature & humidity sensor complex with a calibrated digital  signal output. By using  the exclusive digital-signal-acquisition technique  and  temperature  &  humidity  sensing  technology,  it  ensures  high  reliability and excellent  long-term  stability.   

Pin Connection

Connect the + pin to 5v and - pin to GND, Signal pin will output the  temperature and humidity information. If you are using arduino connect this pin to Ao

For temperature and humidity sensor datasheet, please click here

For humidity and temperature sensor  Arduino code, please click here