Features 1 High accurate indoor and outdoor air quality monitoring system with professional grade detection technology 2 It is multi functional whihc can detect HCHO TVOC CO2 PM2 5 Temperature Humidity can also set and diaplay time alarm clock and calendar 3 Large LCD display with backlight convenient for your reading anytime 4 Rreal time local outdoor air quality readings and real time gas monitoring to prevent any respiratory disease 5 Suitable for using in the car living room house with new furniture office classroom outdoor environment etc Specifications BrandBakeeyModelJSM 136MaterialABSColorWhiteDimensionsabout 12 7 8 5 5cm 5 00 3 35 1 97inchWeight 350gCharging InterfaceMicro USBBattery5V 1000mAhStandby timeabout 240 360minCharging time about 4 hoursBoot appointment120 secondsPacking List 1 Air Monitor1 USB cable1 User Manual