Description Feature 1.CO2 measurement range: 400-5000ppm 2.Applicable temperature: 1-70 3.Humidity measurement range: 0%-99%RH 4.Battery capacity: 1200mAh large capacity battery, long time work 5.Charging interface: Type-C charging 6.Display mode: LED digital display + Large LCD screen + backlight 7.The product is small in size and easy to carry. 8.The product does not need to be calibrated, it can be tested after booting, and the carbon dioxide can be accurately detected. It is used in greenhouse agricultural production, production warehouses, laboratories, households, etc. 9.It has a wide range of uses and strong practicability. It is used for epidemic prevention and control to detect the CO2 concentration in the population, so as to control the number of people and avoid the risk of cro-infection. Packing List 1 * Air Quality Detector 1 * Cable 1 * User Manual Features: 1.Intelligent CO2 tester uses air semiconductor-sensor, high accuracy, stable performance, Strong anti-interference ability, low consumption and long service life. 2.The new machine needs to be ventilated for 24 hours to ensures accurately measurement,and the product will work normally. About Shipment 1.If you choose to ship from China, we ship by the Standard Shipping; if you choose to ship from overseas warehouses, we will ship by the local logistics delivery. 2.Your order is generally shipped within 24h, please kindly be more patient to wait. 3.Anything please feel free to let me know,we will solve it for you as soon as poible.