This module can help you detect the temperature and humidity of the environment of your house.

The module contains a DHT11 temperature & humidity senorthat is a complex sensor with a calibrated digital signal out.It use digital module acquisition technology and the temperature&humidity sensor technology.Sensor consists of a resistance type moisture element and a NTC temperature measuring element. Because of single wire serial interface, it is easy to use the module.

Specifications

• Work Voltage: 3.3V ~ 5V
• Measuring Range: Humidity: 20% - 90% RH; Temperature: 0 ~ 50 °C
• Signal Collecting Period: 2S
• Accuracy: Humidity: ±5% RH; Temperature: ±2°C
• Dimensions(mm):40.0(L)x20.0(W)x7.6(H)

Parts list

• 1 X Crowtail- Temperature& Humidity Sensor 
• 1 X Crowtail 4 Pin Cable

Links

• Temperature& Humidiy Sensor Schematic
• Temperature& Humidiy Sensor Program
• Wiki link