feature:6 in 1 Air Quality Monitor: Come and try this new multifunctional air quality monitor, compared with other air quality monitors, this monitor can detect PM2, 5, PM10 , HCHO, tvt, CO and CO2.Large Screen: This air quality monitor has a large screen which allows you to see the test data more clearly and you can get the results easily.Portable Size: This monitor is small in size, you can use it on your desktop without taking up too much desktop space, and it is also easy to carry.Wide range of applications: This CO2 monitor can be used in home, office, office, hotel and other places.Built-in Multiple Sensors: This air quality monitor uses infrared sensing technology, laser sensing technology, and electrochemical sensing technology to show you accurate data.Four Colors of Alarm: There are four different colors to indicate the different quality of the air being monitored: green comptiable with good air quality and colors ranging from yellow to orange to red comptiable with poor air quality. air quality.Temperature unit conversion: The temperature unit can be switched between Celsius and Fahrenheit, and a sound prompt will be issued when the monitoring data exceeds the standard.Specification:Material: ABSWhitepm2.5 detection range: 0-999ug/mPM10 detection range: 0-999ug/mHCHO detection range: 0-9.999 mg/mtvt detection range: 0-9.999 mg/mCarbon monoxide detection range: 0-1000ppmCO2 detection range: 400-5000PPMCharging method: USB Type-C interface 500mABattery: 1 lithium battery, 1200 mAh (not included)Product size: 90*70*35mm/3.5*2.8*1.4inPackage size: 118 x 115 x 48 mm / 4.6 x 4.5 x 1.9 inchPackage Weight: 200g/7.1ozPacking list:1 * Air Quality Monitor