Household Air Quality Detector Multifunctional CO2 Tester with Carbon Dioxide Value Electricity Quantity Temperature Humidity Display Function This is a kind of multifunctional air quality detector, support detect CO2, temperature and humidity. The air ventilation recycle system will automatical control according to the detected data. Hundreds air vents on the back of outshell, not only speed up the convection between air and machine to get effective detection but also provides fine heat radiation effect. You can have a try.Features:Compact in size, lightweight and portable, easy to take out and carry around with you.Adopts most high accuracy infrared sensor, with sensitive respond and accurate measurement data.Real-time detection, automatic refresh data, with multi-use.Digital display to shows the CO2 concentration value, real-time temperature and humidity, remaining electric quantity and etc..Stable performance, antijamming ability, low consumption and can provides long service time.Hundreds air vents on the back of outshell, not only speed up the convection between air and machine to get effective detection but also provides fine heat radiation effect.Specifications:Name: Air Quality DetectorMaterial: ABSBattery: 1 * 3.7V, 2500mAh lithium battery (included)Charge: DC5V micro-USBCharge time: 60minTest temperature: -20 to 40Test humidity: 20-90%Corresponding time: 1sItem size: 118 * 61 * 26mm / 4.65 * 2.40 * 1.02inItem weight: 129g / 4.55ouncePackage size: 172 * 91 * 32mm / 6.77 * 3.58 * 1.26inPackage weight: 218g / 7.69ouncePacking List:1 * Air Quality Detector1 * USB Cable1 * Guideline