• Temperature measuring range: 0~+50degree.
  
• Humidity measurement accuracy: ±5.0%RH. 
  
• Temperature measurement accuracy: ±2.0degree. 
  
• Low power consumption.

Features :

1. Low power consumption.
2. Relative humidity and temperature measurement
3. All calibration, digital output
4. Excellent long-term stability
5. No additional components
6. Long distance signal transmission
7. Ultra-low power
8. 4-pin package
9. Completely interchangeable

The DHT-11 Digital Temperature And Humidity Sensor is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).