["brand new and high quality\nDescription:\nThis detector is small and portable, can clearly display HCHO and CO2 concentration, the temperature and humidity of the environment, suitable for office, home, gym and other use scenarios.\n\nFeatures:\nWith TVOC sensor, it can detect TVOC in the environment and better understand the environment.\nReal-time monitoring and real-time display of carbon dioxide concentration per cubic meter.\nIt can detect and display the temperature and humidity of the environment to help users understand the environment.\nIt is suitable for office, family, gym and other occasions, with a wide ranges of applications.\nIntelligent color screen display, the number is clear, easy to identify and read.\nWith alarm mode, through color change, users are prompted to pay attention to the environment.\nIt has long service life and can be charged with USB cable.\nSmall and portable, easy to carry, does not take up too much space, can be installed in the home.\n\nSpecification:\nDisplay Method: 2.8”LCD screen display, 240*320 pixels\nCO2 Technology : Infrared ( NDIR)\nTemperature and Humidity sensor\nDetection Range: CO2 ( 0-6000 ppm)\nSampling Time: 1.5 seconds\nDetection Temperature: -10°C to 70°C\nRelativehumidity: 10% - 99%\nStorage Temperature: -10°C to 60°C\nConcentration unit for HCHO and TVOC: mg/m³\nBattery: 3.7V, 1500mAh\nMaterial: ABS Plastic\nSize: approx.89x70x35mm/3.50x2.76x1.38in\nOptional Colors: Black, White\nQuantity: 1 Set\n\nNote: \nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Detector\n1 x USB Cable\n1 x Manual\n(other accessories demo in the picture is not included.)"]