1.Fully control of air quality - It's available for 8 kinds of data including PM2.5/PM1.0/PM10/HCHO/TVOC//TEMP/, to the health of your family in all domains. 2.High Sensitivity Sensor - Built in PM 2.5 sensor, electrochemical sensor and TVOC sensor, it has high accurate testing. It's more precise than the general models in the market now. 3.Sound and Color Alarm - Do real time testing record and analyzed, hazard level with Time Display. If standard, prompt alarm and interface color changed, avoiding potential risk 4.High-capacity Lithium Battery - It can be via USB cable. Low battery alarm. And if there is no operation within two hours, the machine will automatically. 5.Application Range: Home (Kitchen, Bedroom and etc.), Office, Car, Travel, Camping and Party, etc. Test the Air Quality anytime anywhere to be from harmful of PM2.5, TVOC, HCHO, and So On. Sensors are subjected by chemical substances, keep it from alcohol, perfume, , smoke when working PM2.5 Sensor technolology: Scattering HCHO technolology: Electrochemistry sensor TVOC technolology: Semiconductor sensor ARM Processor: High-speed complex calculations Temperature and Humidity sensor, detect temp, Detection range: (0-500) PM2.5(0-999 /) HCHO(0.001-1.999Mg/) TVOC(0.001-9.999Mg/) Power supply:1500mah rechargeable -battery included Colour:black Material:plastic Package Contents: 1 x Air Quality Detector 1 x Charging cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.