The Meterk Tuya WIFI 8-in-1 Air Quality Monitor delivers comprehensive indoor environmental analysis in a single device. This intelligent tester simultaneously measures PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature, and humidity levels with precision. The LCD display automatically adjusts brightness and allows you to toggle between pollutant readings at startup. Control and monitor air quality remotely via the Tuya app, with smart sleep mode and proximity wake-up features. Temperature display switches between Celsius and Fahrenheit. CE and FCC certified, battery included, and designed for professionals and homeowners serious about indoor air quality assessment.