It is a kind of air quality detector, compact in size, lightweight and portable. Adopts high-precision semiconductor TVOC sensors, real-time detection, automatic refresh data, multiple use. Large LED display, you can clearly see the electricity quantity, CO2 value, TVOC value, HCHO value, temperature and humidity. Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, etc. Features:Compact in size, lightweight and portable, easy to take and carry with you.Uses high-precision semiconductor TVOC sensors, with stable working performance, can accurately detect carbon dioxide value.Adopts electrochemical detection module with stable detection performance, anti-jamming ability, low consumption and can provide long service time.Large LED display, you can clearly see the electricity quantity, CO2 value, TVOC value, HCHO value, temperature and humidity. and switchable, real-time detection, automatic data refresh, with multi-use.Adopts air convection design, which can provide more accurate detection results.Equipped with air quality level division function, three different colors correspond to different air quality levels, allowing you to know the current atmospheric conditions more accurately and graphically.400-1000 ppm: green light flashes, 1001-3000 ppm: orange light flashes, above 3000 ppm: red light flashes.The product does not need calibration, it can be tested after startup, and it can accurately detect carbon dioxide.Hundreds of ventilation holes reserved on the case not only accelerate the convection between the air and the machine, thereby realizing effective sensing, but also provide fine heat dissipation effect.Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, business offices, etc. Features:Name : Air quality detector Material: ABS Battery: 1 * Built-in lithium battery, 5V, 1200mAh (included) Display: LED CO2 measuring ranges: 400ppm-5000ppm Resolution: 1ppm Accuracy: (50ppm + 5% reading) Temperature measurement ranges: -10.0 to 500 Resolution:1 Accuracy: 1 Humidity measuring ranges: 10% RH-99% RH Resolution: 1% RH Accuracy: 5% RH Operating temperature: 0-50 Working humidity: 20%RH-90%RH Item Size: 160*90*41mm/6.30*3.54*1.61in Item Weight: 202g/7.13oz Package Size: 190 * 120 * 60mm / 7.48 * 4.72 * 2.36in Package Weight: 406 g / 14.32 ounces Packing List:1 * Air Quality Detector 1 * Guideline