The DHT11 temperature and humidity sensor use a thermistor to measure temperature and capacitive humidity sensor to measure humidity. It has a single wire digital interface.
- Supply Voltage: 3.5 to 5.5V
- Output Signal: digital signal via single-bus
- Operating Range and Accuracy (Humidity): 20-80% RH; +/-5% RH
- Operating Range and Accuracy (Temperature): 0 to 50 C; +/-2% C
- Average Sending Period: 2 seconds
- Dimensions (excluding pins): 12.6mm (0.5") length x 5.83mm (0.23") width x 16mm (0.63") height
- Weight: 2.4g (0.08oz)