It is a kind of high quality air quality detector that uses semiconductor sensors with high accuracy and stable working performance. Large digital display, 3-in-1 design, you can clearly see the carbon dioxide concentration, temperature and humidity data in real time. Wide application: planting in agriculture, greenhouse vegetables, production warehouses, material processing, home interiors, etc. You can try. Characteristics: It uses high accuracy semiconductor sensors, with stable working efficiency, can accurately detect the value of carbon dioxide. It adopts air convection design, which can provide more accurate detection results, and the detection range is from 400 ppm to 5000 ppm. Large LCD display, 3in1 design, you can clearly see the carbon dioxide concentration, temperature and humidity in real time. 4-color circle pattern, different font colors display different air quality, green 0-799ppm, light green 800-1199ppm, orange 1200-1599ppm, red 1600-1999ppm, 2000ppm above four colors flash at the same time. Strong anti-interference ability, low consumption and long service life. The product does not require calibration, it can be tested after commissioning and accurately detects carbon dioxide. Hundreds of ventilation openings reserved on the housing not only accelerate convection between air and machine, thus ensuring effective detection, but also provide a gentle heat dissipation effect. Wide application: planting in agriculture, greenhouse vegetables, production warehouses, material processing, home interiors, etc. High capacity 1200mAh battery provides long working time, Type-C charging interface, easy charging. Technical data: Name: Air Quality Analyzer Color: Black, White (Optional) Display: LCDbacklight Battery: 1*3.7V, 1200mAh battery (included) CO2 measuring ranges: 400-5000ppm Resolution: 1ppm Temperature measurement ranges: 0-50 Resolution: 1 Humidity measurement ranges: 0％-99％RH Resolution: 5% RH Operating temperature: 0-70 Input Voltage: 5V Charging Interface: Type C Product Size: 90*70*35 mm / 3,5*2,8*1,4 inch Product Weight: 117g / 4,1oz Package Weight: 173g/6.1oz List of things to pack: 1 * Air Quality Analyzer 1 * Type-C cable; 1 * User Manual