Come and try this new type of multifunctional air quality detector, compared with other air quality detectors, this detector can show you 6 different detection results at the same time, and the detection function is more complete. If you are looking for a new air quality monitor, give it a try, it won't let you down. Features: 6 in Air Quality Tester 1:Come and try this new type of multifunctional air quality detector, compared with other air quality detectors, this detector can test PM2.5, PM10, HCHO, TVOC, CO and CO2 for you at the same time. Large display screen: This air quality monitor with large display screen allows you to see the detection data more clearly , you can get the results easily. Portable Size: This monitor is small in size and you can use it on your desk without taking up too much space on the desk, also easy to carry . Wide applications: This CO2 monitor can be used at home, office, computer, hotel and other places. Multiple sensors Integrated:This air quality monitor uses infrared detection technology, laser detection technology and electrochemical detection technology to show you the accurate data. Four-color alarm : There are four different colors to show the different qualities of the air monitored: Green means good air quality and colors from yellow to orange to red mean poorer air quality. Conversion of temperature units: Temperature units can be switched between Celsius and Fahrenheit and when the monitoring data exceeds the standard, a sound will be played to indicate this. Features:< br/> Material: ABS Color: black, white (optional) PM2.5 detection ranges: 0-999ug/m PM10 detection ranges: 0-999ug/m HCHO detection ranges: 0-9.999 mg/m TVOC detection ranges: 0-9.999 mg/m CO detection ranges: 0-1000PPM CO2 detection ranges: 400-5000PPM Charging method: 500mA USB Type-c interface Battery: 1 * lithium battery, 1200 mAh (included) Item size: 90 * 70 * 35 mm / 3.5 * 2.8 * 1.4 inch Package size: 118 * 115 * 48mm / 4.6 * 4.5 * 1.9inch Package Weight: 200 g / 7.1 ounces Packing List: 1 * Air Quality Monitor