The DHT22 (also known as AM2302 or RHT03) is a high-accuracy digital temperature and humidity sensor with a single-wire interface. Pre-calibrated and mounted on a breadboard-compatible module, it requires no additional components to start measuring environmental conditions immediately.

Compared to the DHT11, the DHT22 offers higher precision (0.1 resolution), a wider temperature range, and better accuracymaking it ideal for applications requiring reliable environmental monitoring.

Key Features

• High Accuracy 0.5C temperature, 2% RH humidity
• Fine Resolution 0.1 degree/humidity point precision
• Pre-Calibrated Digital output, ready to use
• Ultra-Low Power Ideal for battery-powered projects
• Long-Distance Signal Reliable over extended cable runs
• Excellent Stability Consistent readings over time
• Breadboard Compatible 4-pin module with included cable

Specifications

• Model: DHT22 / AM2302
• Temperature Range: -40C to 80C
• Temperature Accuracy: 0.5C
• Humidity Range: 0-100% RH
• Humidity Accuracy: 2% RH
• Resolution: 0.1
• Interface: Single-wire digital
• Package: 4-pin module

Compatibility

• Raspberry Pi (all models)
• Arduino
• ESP8266 / ESP32
• Micro:bit
• Any microcontroller with digital GPIO

Ideal For

• Weather stations
• HVAC and climate control
• Data logging systems
• Greenhouse monitoring
• IoT environmental sensors

Package Contents

• 1 DHT22/AM2302 Temperature & Humidity Sensor Module
• 1 Connection Cable