DHT22 Temperature & Humidity Sensor

DHT22 (AM2302) utilizes exclusive digital signal collecting technique and humidity sensing technology and can output calibrated digital signal. Small size & low consumption & long transmission distance (20 meters) enable AM2302 to be suited in all kinds of harsh applications.

Power voltage shoud be between 3.3V and 6V DC. When power is supplied to sensor don’t send any instruction to it waiting one second to pass unstable status

work with (2ch&DHT , 8CH_Full , 8CH_2A , 16CH_2A)

• Power supply: 3.3V – 6V DC
• Output signal: single-bus Digital
• Sensing element: polymer humidity capacitor & DS18B20
• Measuring range: humidity 0-100% RH / temperature -40°C – 125°C
• Accuracy: humidity ±2% / temperature ±0.2°C
• Sensing period: ~2s