DHT22 Temperature and Humidity Sensor

• Low cost
• 3 to 5V power and I/O
• 2.5mA max current use during conversion (while requesting data)
• Good for 0-100% humidity readings with 2-5% accuracy
• Good for -40 to 80°C temperature readings ±0.5°C accuracy
• No more than 0.5 Hz sampling rate (once every 2 seconds)
• Body size 27mm x 59mm x 13.5mm (1.05" x 2.32" x 0.53")
• 4 pins, 0.1" spacing

Includes:

1 x DHT22 Digital temperature and humidity sensor

1 X 10K resistor

Project/Tutorial:

http://projects.privateeyepi.com/home/home-alarm-system-project/temperature-and-humidity