Description Description Product information: Color: black Function: HCHO, TVOC, PM1/2.5/10 HCHO test range: 0-1.999mg/m3 PM1/2.5/10 test range: 0~999g/ 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 RD team already made this product perfect by continuously upgrading it with ISO 9001 certificated and potent certifications as well as Chinas 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.