Description CO2 Meter CO2 Sensor Air Quality Analyzer Household Digital Air Detector Intelligent Air Pollution Monitor Gas Detector Features: LCD large screen, different font colors display different air quality, green 400-799ppm, yellow 800-1199ppm, orange 1200-1599ppm, red 1600-1999ppm, 2000ppm above four colors flash at the same time. The product is compact in size and easy to carry. The ventilation holes in the rear not only accelerate the convection between the air and the machine, so as to achieve effective detection, but also provides fine heat diipation effect. The product does not need calibration, startup can be tested, accurate detection of carbon dioxide, used in greenhouse farming agricultural production, production warehouse, laboratory, family, etc. Widely used and practical, used for epidemic preventions and control to detect the CO2 concentration in the population, so as to control the number of people and avoids the risk of cro-infection. 1200mAh large capacity battery for long working time, Type-C charging interface, easy charging. Specifications: Color: black, white (optional with Bluetooth/without Bluetooth) CO2 measuring range: 400-5000ppm Temperature measuring range: 0-50 Humidity measuring range: 0-99RH Battery: 3.7V, 1200mAh Item size: 90 * 70 * 35mm / 3.5 * 2.8 * 1.4in Item weight: 117g / 4.1ounce Package size: 140 * 125 * 41mm / 5.5 * 4.9 * 1.6in Package weight: 173g / 6.1ounce Packing List: 1 * Air Quality Analyzer 1 * USB Cable 1 * User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.