The DHT11 Digital Temperature And Relative Humidity Sensor Module is a low cost humidity and temperature sensor. 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.

• Power Supply Voltage DC: 3.3~5.5V
• Output: Single Bus Digital Signal
• Measuring Range: 20-90% RH, Temperature: 0~50°
• Measurement Accuracy: +-5% RH, Temperature: +-2°
• Resolution: 1% RH, Temperature: 1°
• Long term stability: < ± 1%RH/
• Response time: <5 seconds

• Datasheet