Keyestudio DHT22 (AM2302)Temperature and Humidity Sensor for Arduino Uno r3

The Keyestudio DHT22 (AM2302) is a highly reliable digital temperature and humidity sensor designed for seamless integration with the Arduino Uno R3. Featuring a calibrated digital signal output, it is an ideal choice for South African students, makers, and hobbyists building weather stations, home automation systems, or environmental data loggers.

Calibrated digital signal output

This composite sensor utilises advanced digital module collection technology to deliver pre-calibrated temperature and humidity readings. This ensures excellent long-term stability, high reliability, and strong anti-interference performance in your projects.

Precise environmental monitoring

The sensor measures relative humidity from 0% to 100% RH with an accuracy of plus or minus 2% RH. It also tracks temperatures from -40 degrees Celsius up to 80 degrees Celsius with an accuracy of plus or minus 0.5 degrees Celsius.

Single-bus digital interface

Operating on a voltage range of DC 3.3V to 5V, the sensor communicates via a simple 3-pin single-bus digital interface. This makes it incredibly straightforward to wire up to your Arduino Uno R3 or other compatible development boards.

Convenient mounting holes

Designed with two integrated mounting holes, this compact module is easy to secure onto chassis, custom enclosures, or robot frames. It weighs just 5.9g and measures 43mm by 26mm by 9mm.

Broad application versatility

With its ultra-fast response time, this sensor is perfect for dehumidifiers, weather stations, automatic control systems, and medical monitoring. It is also highly suited for consumer goods, automotive projects, and custom data loggers.