| This detector has 4.8inch large screen display, which can be used to test and display the concentration of HCHO, TVOC, CO2, PM2.5, PM10, AQI, C6H6, temperature and humidity at the same time. Suitable for agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, and etc. Features: 9in1 Air Quality Tester: This detector can be used to test and display the concentration of HCHO, TVOC, CO2, PM2.5, PM10, AQI, C6H6, temperature and humidity at the same time. High Accurate Sensors: Uses highprecise semiconductor TVOC sensor, electrochemical CO sensor, infrared PM2.5 sensor, temperature and humidity sensor, with high sensitivity, superior … | |