DHT11 Temperature and Humidity Sensor

The DHT11 temperature and humidity sensor uses a thermistor to measure temperature and capacitive humidity sensor to measure humidity. It has a single wire digital interface.

Specifications

• 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

Resources

• DHT11 Datasheet
  
• DHT Arduino Library GitHub Page