The DHT22 / AM2302 Digital Temperature & Humidity Sensor Module is a high-accuracy environmental sensing solution designed for Arduino, Raspberry Pi, ESP32, smart home systems, and DIY electronics. Compared to the DHT11, it provides significantly better precision and a wider measurement range, making it ideal for weather monitoring, indoor climate control, and automation projects.

✨ Key Features

• High Accuracy: ±2% RH humidity accuracy and ±0.5°C temperature accuracy.
• Wide Measurement Range:
  • Temperature: −40°C to +80°C
  • Humidity: 0% to 99.9% RH
• Simple Interface: Single-bus output, easy to connect to microcontrollers.
• Upgrade Friendly: Fully compatible with DHT11 wiring and libraries.
• Flexible Power Input: Operates on 3V–5.5V DC, suitable for most development boards.

📊 Specifications

🔌 Wiring Guide