Description: Various Detectable Gases - The indoor air quality monitor with built-in electrochemical sensors can accurately detect carbon dioxide (CO2), (HCHO), volatile organic compounds (TVOC), and particulate matter (PM2.5/PM10) in the air. These readings involve the detection of toluene, harmful and pollutants in the air. New Design - The unique mold designed air quality monitor with LCD color digital display can provide an average value for each gas, because long-term monitoring, real-time data is unstable. Easy Operation - This air monitor is easy to operate, and alarm sounds. At the same time, you can set the standard value of . If the density is higher than the standard value, the device will alarm. Portable 2000mAh Rechargeable Battery - It adopts 2000 mAh rechargeable battery, packaged with a USB cable, and the standby time can last for 8-12 hours. Wide Application - Widely used in homes, offices, enterprises, governments, schools and automobiles. Detect and monitor air problems at any time to ensure the health of family members or employees. Specification: Size: 14.8x3x7cm / 5.82x1.18x2.75inch Material: Plastic Package Includes: 1 Piece Air Quality Monitor 1 Piece USB Cable 1 Piece Manual Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!