Features:  You can use it in your home, outsdoor, in your car and wherever you want.  With a variety of functions, you can meet a variety of detection needs.  Independent sensors, such as carbon dioxide sensor, dust laser sensor, TVOC sensor, temperature and humidity sensor, make the detection results more accurate and professional.  History records,you can compare the data and see the change.  Detection range: AQI(0-500), PM2.5 (0-999ug/M³), CO2( 0-5000ppm), TVOC(0.001-9.999Mg/M³)  ARM processor, fast computing speed, more accurate detection results.  It can detect PM2.5 PM1.0 PM10 CO2 TVOC Temperature Humidity.    Specifications:  Material: Metal  Color: Black  Battery: 1 * lithium battery, 3000mAh (included)  Charging method: DC5V Micro USB  Display method: 4.3in LCD screen display  Atmospheric pressure: 86Kpa-106Kpa  Sensor for CO2: infrared (NDIR)  Detection method for PM: laser scattering  Sampling time: 1.5 seconds  Detection temperature: -10°C~50°C  Relative humidity: 20%~85%  Storage temperature: -10°C~60°C  Concentration unit for CO2 : PPM  Concentration unit for PM: ug/m³  Concentration unit for TVOC: mg/m³  Item size: 131 * 78 * 67.5mm / 5.2 * 3.1 * 2.7in  Item weight: 345g / 12.2ounce  Package size: 173 *153 * 90mm / 6.8 * 6.0 * 3.5in  Package weight: 590g / 1.3lb    Packing List:  1 * Air Quality Detector  1 * USB Cable  1 * User Manual