This is a kind of quality air quality detector, which uses high accuracy semiconductor sensors, with stable working performance. Large digital display, 3-in-1 design, you can see the carbon dioxide concentration, real time temperature and humidity data clearly. Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc.. You can have a try.Uses high accuracy semiconductor sensors, with stable working performance, can accurately detect carbon dioxide valueAdopts air convection design, which can provides more accurate detection results, and the detection ranges from 400ppm to 5000ppmLarge LCD display, 3in1 design, you can see the carbon dioxide concentration, real time temperature and humidity data clearly4-color color-circle design, 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 timeStrong anti-interference ability, low consumption and long service lifeThe product does not need calibration, it can be tested after booting, and it can accurately detect carbon dioxideHundreds of ventilation holes reserved on the housing not only accelerate the convection between the air and the machine, thereby realizing effective detection, but also provide a fine heat dissipation effectWidely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc.1200mAh large capacity battery for long working time, Type-C recharging interface, easy rechargingSpecifications:Name: Air Quality AnalyzerDisplay: LCD+backlightBattery: 1 * 3.7V, 1200mAh battery (included)CO2 measuring ranges: 400-5000ppmResolution: 1ppmTemperature measuring ranges: 0-50Resolution: 1Humidity measuring ranges: 0-99RHResolution: 5%RHOperating temperature: 0-70Input voltage: 5VRecharging interface: Type-CItem size: 90 * 70 * 35mm / 3.5 * 2.8 * 1.4inItem weight: 117g / 4.1ouncePackage included:1 x Air Quality Analyzer1 x Type-C Cable1 x English and Chinese User Manual