🔍 Product Overview

The DHT22 (AM2302) is a high-accuracy digital sensor module designed to measure both temperature and humidity with excellent stability and reliability. Featuring an internal calibrated digital signal output and a single-wire communication interface, this sensor is perfect for projects that demand precise environmental monitoring with minimal wiring and setup.

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🚀 Why It’s Ideal for Your Projects

• Dual sensing capability: Accurately measures both temperature and humidity, offering comprehensive environmental data in one compact module.

• Easy digital interface: Outputs fully calibrated digital signals, removing the need for external analog-to-digital conversion.

• Wide operating range: Designed for diverse conditions with a temperature range from -40°C to +80°C and humidity range from 0% to 100% RH.

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📝 Key Features

• Temperature range: -40°C to +80°C with ±0.5°C typical accuracy.

• Humidity range: 0%–100% RH with ±2% typical accuracy.

• Operating voltage: 3.3V to 5.5V, making it compatible with most microcontrollers including Arduino, ESP32, and Raspberry Pi.

• Digital single-wire communication for fast, stable, and interference-resistant data transmission.

• Compact module design with mounting holes and a pre-soldered header for quick installation.

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🎯 Typical Applications

• Home automation and HVAC systems – Control and monitor indoor climate conditions efficiently.

• Weather stations – Ideal for real-time outdoor temperature and humidity tracking.

• Greenhouse and agricultural systems – Maintain optimal environmental conditions for plant growth.

• IoT and data logging projects – Integrate into connected devices for smart environmental monitoring.

• Educational use – Perfect for teaching sensor integration and environmental data analysis.

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✅ Why You’ll Love It

The DHT22 offers a perfect balance of precision, reliability, and simplicity. Whether you’re building a weather station, automating your home, or experimenting with IoT projects, this sensor provides accurate environmental readings and seamless connectivity—making it a favorite among makers, educators, and engineers alike.