multifunction air quality tester,detect CO2/PM2.5/ PM1.0/ PM10/ HCHO/ TVOC/ / Temperature/ HumidityIt helps detect harmful HCHO and TVOC around your room in the real timeRemind you to the PM1.0/PM2.5/PM10 within the safe level LCD color display easy to read the test results, more convenient to use the indoor air detection,tuya WIFI mobile phone detection.Easy to carry, suitable , car, office, factory and other environmentsDisplay : 4.3 inch LCD screen display, 480X270 pixelsAtmospheric pressure: 86Kpa - 106KpaDetection for CO2: Infrared ( NDIR )Detection for PM: laser-ScatteringSampling time: 1.5 secondsProduct Size: 145 x 78 x 97.2mmDetection temperature: -10C to 50C;Relative humidity: 20% - 85%Storage temperature: -10C to 60C;Concentration unit for CO2: Concentration unit for PM: /m3Concentration unit for HCHO and TVOC: mg/m3Power source: Lithium battery with 3000 mAh capacity;5V DC power charging via -USB portMaterial: ABSColor as shownPackage Contents:1X Air Quality Detector1X USB charging cable1X English ManualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.