DHT Series: Digital Humidity & Temperature Sensors
The DHT series provides a reliable and cost-effective solution for monitoring environmental conditions. These sensors combine a capacitive humidity-sensing element and a high-precision thermistor to deliver calibrated digital signals. Whether you are building a smart greenhouse or a home weather station, the DHT family offers the perfect balance of simplicity and performance.
- DHT20: The modern evolution. It uses the I2C interface, offering improved stability and faster response times. Ideal for professional-grade IoT projects where bus efficiency is key.
- DHT21 (AM2301): The “rugged” choice. It comes in a durable large housing with pre-wired leads, making it easy to mount inside enclosures or air ducts.
- DHT22 (AM2302): The high-precision favorite. Offers a wider measurement range and better accuracy than the entry-level DHT11, while maintaining a simple 1-Wire-like digital interface.