WIFI Air Detector TVOC Gas Quality Monitor CO2 Carbon Dioxide Meter With 4.3 Inch Screen Temperature Humidity Detector Monitor  Product description：  This product is a multifunctional air quality monitor that detects Carbon dioxide (CO2),Formaldehyde (HCHO), Total Volatile Organic Compounds (TVOC), Particulate Matter <2.5 micron-sized particles (PM2.5/1.0/10), Temperature, and Humidity with clock and record function.   As a scientific air quality detection device, it combines multiple air sensors with a built-in fan to allow real-time monitoring of Carbon dioxide (CO2), formaldehyde (HCHO), total volatile organic compounds (TVOC), PM2.5/1.0/10, temperature, and humidity on its digital LCD display. Come on and try it.     Features:   -4.3" color liquid crystal display (LCD), 480X270 pixels   -Test variables: Carbon dioxide (CO2), PM2.5/1.0/10 formaldehyde, TVOC, temperature, humidity   -Large 3000mAh capacity Lithium battery   -On-board fan to draw in ambient air for more accurate reaktime results-5V Micro USB charging   -Low battery warning     Specifications   Material：ABS   Display method: 4.3 Inch LCD screen display   Pixel: 480X270 pixels   Atmospheric pressure: 86Kpa-106Kpa   Detection method 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 HCHO: mg/m3   Concentration unit for TVOC: mg/m3   Flow range: 180 L/min   Battery: 1 * lithium battery, 3000mAh(included)   Charging method: DC5V Micro USB Item   size: 145 * 97.2 * 78mm / 5.7 * 3.8 * 3.1in Item   weight: 235g / 8.3ounce   Package size: 180 * 170 * 90mm / 7.1 * 6.7 * 3.5in   Package weight: 460g / 1.0lb     Packing List:   1 * Air Quality Detector   1 * USB Cable   1 * User Manual