This air quality monitor is a multifunctional air quality detector that detects formaldehyde (HCHO),PM2.5, PM1.0, PM10, TVOC, temperature and humidity. Features: Multifunction, it can detect HCHO,PM2.5, PM1.0, PM10, TVOC, temperature and humidity. 2.8in LCD display, 320x240 pixels, key operation, real-time monitoring, convenient. Large 2000mAh capacity lithium battery, charge for 2-3 hours, use for 10-12 hours. It is easy to carry and can help us detect the air pollution in the home, kitchen, office, school, party, and other places, and know the air quality of the place where you live. If there are any problems, please contact our store in time. We will give you a satisfactory solution. Thank you for your understanding. Specifications: Item: Air Quality Monitor Main Material: ABS Main Color: Black Battery: 3.7V2000mAh, Charing Time: 2-3H, Working Time: 10-12H Display Method: 2.8in LCD Pixels: 320 x 240 Atmospheric Pressure: 86Kpa - 106Kpa Sampling Time: 1.5 Seconds Detection Temperature: -10C to 50C Relative Humidity: 20% - 85% Storage Temperature: -10C to 60C Concentration Unit for PM (PM2.5/1.0/10) : ug/m Concentration Unit for HCHO and TVOC: mg/m Size: 164*69*44mm Note: * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package Size: 19.5*10*5.5cm Package Weight: 350g Gift Box Package Packing List: 1* Air Quality Monitor 1* Charging Cable 1* User Manual