Waveshare DHT22 Temperature-Humidity Sensor

This is a calibrated digital temperature and humidity module with onboard sensor DHT22 (AM2302), which features higher accuracy and a wider measuring range than DHT11. It can be used for detecting ambient temperature and humidity, through the standard single-wire interface.DHT22 Digital Temperature & Humidity Sensor is a 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).

Note: Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin, and the rightmost pin to ground. Although it uses a single wire to send data, it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!

DHT22 Features:

• Ultra-Low Power.
• No Additional Components.
• Long-Distance Signal Transmission.
• All Calibration, Digital Output & Completely Interchangeable.
• Relative Humidity & Temperature Measurement.
• Humidity Measurement Precision: 2-5% RH.
• Temperature Measurement Precision: 0.5 deg C.

DHT22 Specifications :

• Model : AM2302
• Recommended Power Supply : 3.3V DC or 5V DC
• Working Humidity Range : 0-100%RH
• Working Temperature Range (C) : -40 to 80

Package Included:

1 x Waveshare DHT22 temperature-humidity Sensor