DHT22 AM2302 Digital Temperature & Humidity Sensor Module for Arduino

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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 Item Details Model DHT22 / AM2302 Module Sensor Type Digital Temperature & Humidity Sensor Working Voltage DC 3V – 5.5V Humidity Range 0% – 99.9% RH Humidity Accuracy ±2% RH Temperature Range −40°C – +80°C Temperature Accuracy ±0.5°C Resolution 16-bit Sampling Period 2 seconds Output Single-Bus Digital Output 🔌 Wiring Guide Pin Function Description VCC Power Input 3.3V or 5V GND Ground Negative terminal DATA / OUT Data Signal Connect to microcontroller GPIO Show more