Description It is a high-quality air quality detector, using a superior electrochemical detection module, high precision, stable performance, and can accurately detect carbon dioxide values. Large screen design, measurement data is clear at a glance. Different colors represent different air quality. You can try. Feature: Strong anti-interference ability, low consumption and long service life. The product does not need calibration, it can be measured immediately when it is turned on, and it can accurately detect carbon dioxide. Different colors correspond to different air quality, suitable for offices, homes and other occasions. Hundreds of ventilation holes on the back of the chais can not only accelerate the convection between the air and the machine for effective detection, but also provide good heat diipation. Widely used in: agricultural planting, greenhouse vegetables, production warehouse, material proceing, home interior, etc. Eight in one: large screen display power, CO2 value, TVOC value, HCHO value, PM2.5, PM10, PM1.0, temperature and humidity. Specification: Name: Air Quality Inspection Meter type: 8in1 black 8in1 white Battery: 1*3.7V, 2000mAh lithium battery (included) CO2 detection range: 100 -5000 PPM, +50 +5%PPM CO2 detection sensitivity: 1PPM TVOC detection range: 0-2.0 mg/m HCHO detection range: 0-0.6 ma/m Temperature measurement range: -10 to 50 C Temperature measurement accuracy: 1 Humidity measurement range: 0%-99%RH Humidity measurement accuracy: 3%RH Charging Mode:DC5V 500mA micro USB interface 4h Dead Weight:About 160g Packing list: 1 * Air Quality Detector 1 * cable 1 * User Manual