DHT11 or KY-015 Temperature & Humidity Sensor Module

KY-015 or DHT11 Arduino temperature and humidity sensor module, provides a digital serial interface to measure humidity and temperature.

 

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