DHT22 Digital Temperature & Humidity Sensor Module
📌 Specifications
🔹 Temperature Range: -40°C to 80°C
🔹 Temperature Accuracy: ±0.5°C
🔹 Humidity Range: 0% – 100% RH
🔹 Humidity Accuracy: ±2% RH
🔹 Response Time: <2 seconds
🔹 Operating Voltage: 3.3V – 5V DC
🔹 Output Signal: Digital (Single-Wire Interface)
🔹 Dimensions: 27mm x 59mm (L x W)
🔹 Weight: ~2.5g
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
The DHT22 (also known as AM2302) is a high-precision digital temperature and humidity sensor, offering improved accuracy and a wider measurement range compared to the DHT11. It features a capacitive humidity sensor and an NTC thermistor to provide reliable and stable readings. The sensor communicates via a single-wire digital interface, making it easy to integrate with microcontrollers like Arduino, ESP32, Raspberry Pi, and more.
With a higher precision, wider temperature/humidity range, and better stability, the DHT22 is an ideal choice for weather stations, HVAC control, industrial monitoring, and IoT applications.
🔹 Key Features
✔ High Accuracy & Stability – More precise than DHT11
✔ Wide Measurement Range – Covers extreme temperatures and humidity
✔ Low Power Consumption – Suitable for battery-powered applications
✔ Digital Output – No need for an analog pin
✔ Pre-Calibrated for Easy Integration
📦 Package Includes
✅ 1 x DHT22 Digital Temperature & Humidity Sensor Module
🚀 Applications
🔹 Weather Stations & Climate Monitoring
🔹 HVAC Systems & Air Quality Control
🔹 Smart Home Automation
🔹 Agricultural & Greenhouse Monitoring
🔹 Medical & Industrial Humidity Control
🔹 IoT & Data Logging Applications
📌 Why Choose DHT22 Over DHT11?
✔ Higher Accuracy (±0.5°C vs. ±2.0°C)
✔ Wider Humidity Range (0-100% RH vs. 20-90% RH)
✔ Better Stability for Long-Term Applications
✔ Ideal for Professional & Industrial Use
🌟 Upgrade your projects with the DHT22 – A reliable sensor for accurate environmental monitoring!
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