Description Multiple Detectable Gases: BIAOLING Enhanced Indoor Air Quality Monitor built in DART electrochemical sensors that can accurately detect airborne carbon dioxide (CO2), formaldehyde (HCHO), volatile organic compound (TVOC), particulate matter (PM2.5/PM10). These readings involve the detection of toluene, harmful chemicals, and airborne contaminants such as carbon dioxide, carbon monoxide, smoke, fog, dust, alcohol, glue, paint, ink, and others. New design : Unique mold and design with LCD color digital display; can offer mean value for each gas because long-term monitoring, real-time data exists instability. 3000mAh portable and rechargeable battery: size about 5.83 x 2.76 x 1.18 inches. It is easy to carry the smart air quality monitor which can help us detect air pollution from gas at home, kitchen, bedroom, office, school, car, hotel, travel, camping, party, etc. especially in the one that has baby, child and pregnant woman. Built with 3000 mAh rechargeable battery and packed with a USB cable, the standby time can last 8-12 hours. Easy to use: This air monitor is easy to operate with just a push of the button Functional, easy-to-read numbers and alarm sound support will let you know if your air is unsafe and you need to take some action.