DHT22 Digital Temperature and Humidity Sensor The DHT22 is a performance combined temperature and humidity sensor designed for accurate, reliable, and stable longterm measurements. Built with a calibrated digital signal output and applicationspecific module capture technology, it delivers precise environmental readings while maintaining durability over time. Key Features and Benefits: accuracy and stability for consistent temperature and humidity measurements Integrated digital signal output for easy data handling with microcontrollers and IoT devices No pullup resistor required, enabling quick and straightforward integration with ESP8266 boards Equipped with the AM2302 sensitivity sensor chip for enhanced performance Singlebus bidirectional serial data output for simple communication protocols Builtin mounting screw hole for secure and convenient installation Specifications: Main Chip: AM2302 Sensitive Temperature Humidity Sensor Output: Singlebus digital signal Compatibility: Direct connection to ESP8266 without additional components Installation: Screw hole for fixed mounting in enclosures or on boards Practical Applications: 1. Home automation systems to efficiently monitor indoor climate for comfort and energy savings. 2. Greenhouse monitoring where stable temperature and humidity control are crucial for plant growth. 3. Electronics enclosures or server rooms to prevent overheating or excessive humidity. Designed for developers, engineers, and hobbyists, the DHT22 offers an easytouse, reliable sensing solution for projects that demand precise environmental data. Its robust design ensures dependable performance in a wide range of applications.