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.
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