SincereetaliThis is a kind of quality air quality detector, which uses high-precision semiconductor sensors, with stable working performance. Large digital screen, 3-in-1 design, you can clearly see the carbon dioxide concentration, real-time temperature and humidity data. Wide applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc. You can try. Features: Uses high-precision semiconductor sensors, with stable working performance, can accurately detect the carbon dioxide value. Adopts air convection design, which can provide more accurate detection results, and the detection ranges are from 400 ppm to 5000 ppm. Large LCD screen, 3-in-1 design, you can clearly see the carbon dioxide concentration, real-time temperature and humidity data. 4-color color circle design, different font colors display different air quality, green 0-799 ppm, light green 800-1199 ppm, orange 1200-1599 ppm, red 1600-1999 ppm, 2000 ppm above four colors flash at the same time. Strong anti-interference ability, low consumption and long service life. 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 casing not only accelerate the convection between air and the machine, thus achieving efficient detection, but also provide fine heat dissipation effect. Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc. 1200mAh large capacity battery for long working time, Type-C charging interface, easy charging. Specifications: Name: Air Quality Analyzer Color: Black, White (Optional) Display: LCD + Backlight Battery: 1 * 3.7V, 1200mAh Battery (Included) CO2 Measuring Ranges: 400-5000ppm Resolution: 1ppm Temperature Measuring Ranges: 0-50℃ Resolution: ±1℃ Humidity Measuring Ranges: 0-99℃RH Resolution: ±5%RH Working Temperature: 0-70℃ Input Voltage: 5V Charging Interface: Type-C Item Size: 90 * 70 * 35mm / 3.5 * 2.8 * 1.4in Item Weight: 117g / 4.1ounce Package Size: 140 * 125 * 41mm / 5.51 * 4.92 * 1.61in 5.5 * 4.9 * 1.6 inches Package Weight: 173g / 6.1ounces Packing List: 1 * Air Quality Analyzer 1 * Type-C Cable 1 * User Manual