1Using professional electrochemical sensor module, high accuracy and strong antiinterference ability. 2Builtin 2500mAh highcapacity lithium battery, convenient to use USB data cable to charge. 3High sensitivity, stable performance, can accurately detect carbon dioxide, suitable for household use. 4With 324 vents on back to accelerate convection between air and machine, so as to get effective detection, provide good heat radiation effect. 5Equipped with a large display, which can display power, carbon dioxide, temperature and humidity. 6Different font colors show different air quality, green shows not exceed good air quality, blue shows moderate exceed good light and moderate pollution, and red shows seriously exceeds. Condition: 100% Brand New Item Type: Air Quality Detector Material: ABS+Electronic Components Voltage: 5V Current: 1A Test Temperature: 2040 Test Humidity: 2090%RH Induction Time: } 1 x Air Quality Detector 1 x USB Cable 1 x Manual 1.Pleaseallow0-1incherrorduetomanualmeasurement.Thanksforyourunderstanding.2.Monitorsarenotcalibratedsame,itemcolordisplayedinphotosmaybeshowingslightlydifferentfromtherealobject.Pleasetaketherealoneasstandard.