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 , 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: Concentration unit for PM: / Concentration unit for HCHO and TVOC: mg/ 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.