Formaldehyde Detectors Air Quality Monitors Portable Display Formaldehyde Detectors Ndoor Air Pollution Meter Microdust _x000D_ Features: _x000D_ Using ARM chip, most of the world's samrtphone processors are produced by ARM with 32-bit high-speed processing performances, which greatly increases the computing speed,more accurate detection and smooth._x000D_ The hazard degree of harmful gases such as formaldehyde and TVOC is not for a static trackings in order to systematically grasp the for health of the Environment._x000D_ The Air Quality Tester is widely used in homes, offices, enterprises, governments, schools._x000D_ The Air Quality Test Formaldehyde Detectors with built-in electric chemicals sensors can accurately detect carbon dioxide, formaldehyde (HCHO), volatile organic compounds (TVOC) and particulate matter (PM2.5/PM10) in the air. These readings involves the detection of toluenes, harmful chemicals and pollutants in the air._x000D_ Colored screen, intelligent control , stable, quick, you can get the precise figure easily._x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: ABS _x000D_ Size: 1.7x2.7x5.9 inch _x000D_ Formaldehyde detection ranging: 0.000-1.999mg _x000D_ TVOC detection ranging: 0.000-1.999mg1.0/PM2.5/PM10 detection ranging: 0-999ug _x000D_ Temperature measurement ranging: 0-50 _x000D_ Humidity measurement ranging: 20~90%RH _x000D_ Charging time: about 4 hours _x000D_ Life time: abou USB interfaces: TypeC interfaces _x000D_ Input voltage: 5V _x000D_ Working environment: 5-40,