Product information:      Color: black      Function: HCHO, TVOC, PM1/2.5/10      HCHO test range: 0-1.999mg/m3      PM1/2.5/10 test range: 0~999μg/ m3      TVOC test range: 0~9.999 mg/m3      Display mode: LED      Power supply: Rechargeable lithium battery/ 1200mAh      Input: 5.0V/300mA             Weight: 185g      Dimension: 150*70.8*43.6mm             Features:      New laser technology testing      One key for calibration, one key for unit switch, one key for alarm and mute      Mysterious style, sutiable for car, office and other environments      Resolution: 0.001      High-Tech professional air detector for accurate aerial detection      Strong R&D team already made this product perfect by continuously upgrading it      with ISO 9001 certificated and potent certifications as well as China's government support,      We have been a powerful & trustworthy enterprise with lovely team and warm service all the way.      Agyris formaldehyde detector PM2.5 household indoor laser electrochemical air quality monitoring instrument.