Unit ENV is an environmental sensor that integrates DHT12 and BMP280 for detecting temperature, humidity, and atmospheric pressure data. The DHT12 is an upgraded version of the DHT11 humidity and temperature sensor, fully backward compatible, with more accurate measurements and an added I2C interface. The BMP280 is an absolute pressure sensor designed for mobile applications with high precision. It is suitable for use in small, low-power terminals. For projects that require quick environmental data collection and detection, the Unit ENV is a good choice balancing performance and cost-effectiveness.