DHT22 (AM2302) Temperature & Humidity Module

The DHT22 (AM2302) is a digital temperature and humidity sensor that reports both readings over a single data pin, accurate to about ±0.5°C and ±2% relative humidity.

Specifications

• Temperature range -40 to 80°C, accuracy ±0.5°C
• Humidity range 0-100% RH, accuracy ±2%
• Single-wire digital output — one GPIO pin
• 3.3-5V supply
• One reading every 2 seconds
• Mounted on a breakout board with pull-up resistor fitted

What you can build with the DHT22 (AM2302) Temperature & Humidity Module

• Room-by-room temperature logging
• Greenhouse and grow-tent monitoring
• Home Assistant climate sensors
• Weather station builds
• Mould and damp monitoring in New Zealand homes

Compatibility

Works with Arduino, ESP32, ESP8266 and Raspberry Pi using the standard DHT libraries. More accurate than the cheaper DHT11 and worth the difference for anything you intend to trust.

Shipping

Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.