Features:* 6 in 1 Air Quality Tester: Come and try this new multi-function air quality detector, compared with other air quality detectors, this detector can test PM2, 5, PM10, HCHO, TVOC, CO and CO2 simultaneously.* This air quality monitor with large display screen to see the detection data better, you can get the results easily.* This monitor is small and can be used on your desk without taking up too much space on your desk, and also easy to carry.* Wide this CO2 monitor can be used at home, office, destination, hotel and other places.* This air quality monitor uses infrared sensing technology, sensing technology and electrochemical sensing technology to show accurate data.* There are four different colors to show the different characteristics of the monitored air: green means the air quality is good, and colors from yellow to orange to red mean poorer air quality. Technical data: Material: ABS Color: black, white (optional) PM2.5 detection range: 0-999ug/m PM10 detection range: 0-999ug/m HCHO detection range: 0-9.999 mg/m, HCHO detection range: 0-9.999 mg /m, TVOC: 0-9.999 mg/mCO detection range: 0-1000ppm CO2 detection range: 400-5000PPM charging Mode: 500mA type c USB interface Battery: 1 * lithium battery, 1200mAh (included) Size: 90*70*35mm/ 3.5*2.8inch Package includes: 1pcs air quality monitor 1pcs USB cable 1pcs manual