Air Quality Monitor CO2 Detector Temperature and Relative Humidity CO2 Meter Formaldehyde Sensor HCHO TVOC Tester Q81COOTDTYComs: Air Quality Monitor is equipped with a large color LCD screen, bright to read even in dark environment. Accurately measure the data of HCHO, CO2, TVOC, temperature and humidity, low error, easy to know the air quality around you. With built-in 1200mAh large capacity rechargeable battery for longer playing time, USB rechargeable, you can charge the air quality monitor with power bank, power adapter, computer, computer, laptop. With a healthier lifestyle at home, the air quality monitor automatically and accurately detects the concentration of CO2, formaldehyde and TVOC in the air. Widely used in home, car, hotel, apartment, office, caf, library, outdoor and more. Specification: Material: ABS Size: 90x70x3 5mm/3.5x2.76x1.38in White/BlackColor: White/BlackPackage Included: 1X Air Quality MonitorNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.