DHT22 High Accuracy Temperature and Humidity Sensor

Specifications:

• Operating Voltage: 3V - 5.5V Input
• Supply Current:
  • While measuring: 0.5mA - 2.5mA
  • In standby mode: 100uA - 150 uA
  • Average Supply Current: 0.2mA - 1mA
• Operating Humidity: 0-100% Relative Humidity
• Operating Temperature: -40 - 80C
• Relative Humidity accuracy: +- 2 to 5%
• Temperature Accuracy: +-0.5 deg C
• Compatible with:
  • Arduino UNO
  • Arduino Mega
  • Raspberry Pi

Commonly used with a 4.7K to 10K resistor.

View the photos above to see how to wire up to your Arduino or Raspberry Pi. You can find the Library for Arduino here .