multifunction air quality tester,detect CO2/PM2.5/ PM1.0/ PM10/ HCHO/ TVOC/ / Temperature/ Humidity It helps detect harmful HCHO and TVOC around your room in the real time Remind 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 for home, car, office, factory and other environments Display : 4.3 inch LCD screen display, 480X270 pixels Atmospheric pressure: 86Kpa - 106Kpa Detection for CO2: Infrared ( NDIR ) Detection for PM: laser-Scattering Sampling time: 1.5 seconds Product Size: 145 x 78 x 97.2mm Detection temperature: -10C to 50C; Relative humidity: 20% - 85% Storage temperature: -10C to 60C; Concentration unit for CO2: PPM Concentration unit for PM: /m3 Concentration unit for HCHO and TVOC: mg/m3 Power source: Lithium battery with 3000 mAh capacity; 5V DC power charging via -USB port Material: ABS Color as shown Package Contents: 1X Air Quality Detector 1X USB charging cable 1X English Manual Only 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.