Indoor Multi-Function Home Portable Formaldehyde Detector Air Quality Detector OOTDTY Feature: Effectively detect formaldehyde, benzene, toluene, ethyl acetate, ethylbenzene, xylene, styrene, n-undecane and many other volatile harmful gases. The mainstream high-precision sensor will not be by the environment, and it can detect effectively. It can only be diagnosed and the value of the detection point can be displayed visually. 3D circulation convection pores, accurate test. It can be used in cars, houses, offices and other occasions. When the formaldehyde concentration is greater than 0.1mg/m3, the indicator light before the value shows "bad" At the same time, the buzzer alarms, indicating that the formaldehyde concentration at this location exceeds the standard. When the formaldehyde concentration is 0.1mg/m3, the indicator light before the value shows "excellent", which means that the child's formaldehyde concentration meets the standard. When the TVOC concentration is greater than 0.6mg/m3, the indicator light before the value shows "poor", and the buzzer alarms at the same time, and it shows "excellent" if it meets the standard. Specification: Color: Black Material: Plastic Size: 7x15cm(2.75x5.9inch) Detection range: 0.000-2.999mg/m3 (formaldehyde) 0.000-9.999mg/m3(TVOC) Detection principle: principle of electrochemical gas sensor Sampling method: diffusion chicken Concentration unit: mg/m3 Detection temperature: -10-45 Storage temperature: -20-50 Battery requirements: 2xAA batteries (batteries are not included in the package) Working voltage: 2.4-3.0V Quality: 1Pc Note: And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x