Model: DHT22; Main Chip: AM2302 high sensitive temperature humidity sensor. Single-bus digital signal output, bidirectional serial data
Single bus digital signal output, two-way serial port data
Temperature range: -40 to 80 degree celsius, Temperature measurement accuracy: +/- 0.5℃ degree celsius
Humidity measuring range: 0~100%RH, Humidity measurement accuracy: ±2%RH
*With fixing screw hole, convenient to install and fixed Size:43*15*10mm/1.69*0.59*0.39in
The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use, but requires careful timing to grab data.
No additional components.
Excellent long-term stability.
All calibration, digital output.
Long distance signal transmission.
Relative humidity and temperature measurement
Accuracy resolution: 0.1.
Humidity range: 0-100%RH.
Temperature range: -40~80℃.
Humidity measurement precision: ±2%RH.
Temperature measurement precision: ±0.5℃
1 x DHT22Digital Temperature and Humidity Sensor Module (Original Chip)