(as of Jan 30,2023 11:37:24 UTC – Details)
Type: DHT22 temperature and humidity sensor
Size: 36.8 x 15.8 x 9 mm (L / W / H)
Screw Hole Diameter: 2.6mm
Accuracy Resolution: 0.1
Signal Output Type: Digital
Operate Voltage: DC 3—5.5V.
Humidity measurement range: 0—100%RH
Humidity measurement accuracy: ±2%RH
Temperature measurement range: -40—80℃
Temperature measurement accuracy: ±0.5℃
Single digital signal output, serial data bidirectional port
Suitable for connection to all standard boards such as Arduino, RN-Control, Raspberry Pi.
Testing and inspection equipment
1, Long-term exposure to sunlight or strong ultraviolet radiation will reduce performance.
2, High concentration of chemical pollution will cause the sensor’s sensing layer to be completely damaged.
3, The sensor placed under extreme working conditions or in the chemical vapor can be restored to the state when it was calibrated through the following processing procedures.
4, Dry it for 2 hours under the humidity condition of 50-60° and less than 10%RH; then keep it for more than 5 hours under the temperature condition of 20-30° and greater than 70%RH.
1* DHT22 Digital Temperature Humidity Sensor Module
1* DuPont wire
They are suitable for connection to all standard boards such as UNO, RN-Control, Raspberry Pi and other DIY experiment.It takes only 10 minutes to complete a small thermometer test.
Easy to Use. Wiring:”+”: connect to power supply positive; “-” : connect to power supply negative; “out”: connect to micro controller IO port.Designed with screw holes for fixed installation
The sensor can work with both 3.3V and 5V, Single digital signal output, serial data bidirectional port.
DHT22 sensor comprises a capacitive humidity sensing element and an NTC temperature measuring element.It utilises exclusive digital-signal-collecting-technique and humidity sensing technology, to output calibrated digital signal, assuring its reliability and stability.
Ultra-small demisions, extremely low power consumption, it is connected to a high-performance 8-bit microcontroller,signal transmission distance of up to 20m or more, it is the best choice for various applications and even the most demanding applications.