DHT11 Temperature and humidity sensor module
This module consist of a DHT11 digital humidity and temperature sensor and a 1 kΩ resistor. The DHT11 uses an internal thermistor and a capacitive humidity sensor to determine environment conditions, an internal chip is responsible for converting readings to a serial digital signal.
Operating Voltage 3.3V to 5.5V
Humidity measurement range 20% to 90% RH
Humidity measurement accuracy ±5% RH
Humidity measurement resolution 1% RH
Temperature measurement range 0ºC to 50ºC [32ºF to 122ºF]
Temperature measurement accuracy ±2ºC
Temperature measurement resolution 1ºC
Signal transmission range 20m
Connect the Power line (middle) and ground (-) to +5 and GND respectively. Connect signal (S) to pin 8 on the Arduino.