[Multifunctional Air Quality Monitoring]This 5-in-1 carbon dioxide monitor can detect carbon dioxide (CO2), formaldehyde (), volatile organic compounds (TVOC), CO, AQI) in the air in real time. CO detection range: 0-2400PPM. Carbon dioxide detection range: 0-5000PPM. HCHO detection range: 0-1.999 mg/m. TVOC detection range: 0-12mg/m.[Full Color LED Display]With a 5.5-inch LED screen digital display design, this air quality monitor is very easy to read and displays clear real-time data. The battery is displayed in three colors: green, orange and red. Green means enough power. Orange represents half of the battery. Red means the battery is low (it needs to be charged in time).[Large-capacity rechargeable battery]The air quality detector has a built-in large-capacity rechargeable battery with a standby time of up to 5 hours. You can check air quality from anywhere, or have the device monitor continuously in a specific location. It always takes care of you and your family's health.[Easy Operation]Once you turn on the air quality meter, it will automatically measure the air quality around you. The air quality detector has three simple operation buttons. Switch: Press and hold for 3 seconds to turn on or off. ANEW: Press and hold for 3 seconds to reset the instrument calibration. Reset: long press for 3 seconds data to clear and new detection.[Multiple Applications]This air quality monitor is suitable for home air detection, car air detection, maternity and children's room air detection and public place detection, perfect for indoor home, school, office and other occasions.Colour:WhiteMaterial:plasticSize:120X63X26mmPackage Contents:1 x Air Quality Monitor1 x USB Cable1 x English User ManualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.