Grove - Temperature&Humidity Sensor Pro - DHT22 Features
Relative Humidity and temperature measurement
Single wire digital interface (SIG,VCC,GND,NC)
Full range temperature compensation Calibrated
Digital signal Long term stability
Long transmission distance
Low power consumption
DHT11 Feature Summary
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 125°C temperature readings ±0.5°C accuracy
No more than 0.5 Hz sampling rate (once every 2 seconds)
Body size 15.1mm x 25mm x 7.7mm
4 pins with 0.1" spacing