Description [8 in 1 Air Quality Monitor]: This 8 in 1 carbon dioxide monitor can accurately detect carbon dioxide (CO2), formaldehyde (HCHO), volatile compounds (TVOC), particulate matter (PM2.5/PM1.0) time time)/PM10), temperature and humidity. [LED screen display]: With high-definition LED screen digital display design, this air quality monitor is super easy to read, and real-time data is clearly displayed. The LED screen can be switched between horizontal and vertical screens, and the vertical screen displays CO2, HCHO, TVOC; PM2.5, PM1.0 and PM10 are displayed on the display. [Easy Operation]: Just press the power on/off button for 3 seconds, you can operate this air monitor, with LED digital display design, can the average value of each , real-time detection of harmful HCHO and TVOC rooms. [2000mAh Rechargeable Battery]: Built-in 2000mAh lithium battery. A full charge takes 4 hours, and a full charge can work for more than 8 hours. You can check air quality from anywhere, or have devices monitor continuously in locations. [Wide application]: Beautiful appearance, simple design and light weight. It helps us detect gaseous air pollution in homes, kitchens, bedrooms, offices, schools, , hotels, travel, camping, parties, etc. Material: composite material colour: black Package Contents: 1 x Air Quality Monitor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.