About this item Multiple measuring gases: indoor air quality monitoring, integrated electrochemical sensors that can accurately detect carbon dioxide (CO2), formaldehyde (HCHO), volatile organic compounds (TVOC). These readings include the detection of toluene, harmful chemicals and pollutants in the air such as carbon dioxide, carbon monoxide, smoke, fog, dust, alcohol, glue, paint, ink, etc. It takes two minutes to start. Portable and easy to use: Size of approx. 17 x 7 x 3 cm, easy to carry, so you can detect the air pollution caused by gas in home, kitchen, bedroom, office, school, car, hotel, travel, camping, party, etc. Especially when a pregnant woman or baby comes into a new environment, you no longer have to worry. LCD Display & Rechargeable Battery The LCD color display can provide the CO2, HCHO, TVOC, temperature and humidity data detected on the screen in real time. The built-in 1800mAh battery can provide a long standby time. Precise measurement: Built-in highly sensitive sensors can quickly and accurately measure data of CO2, HCHO, TVOC as well as temperature and humidity in the air. If these data are abnormal, a buzzer is output, so you don't have to worry about exceeding the air quality at home without knowing it. Healthy home: This air quality tester detects organic compounds such as formaldehyde, which is probably associated with nose cancer and lung cancer emitted by many household materials. By measuring particle pollution, an air pollution monitor can also help you know when asthma can worsen and when to change the air filter in your home. › See more product details Product description Description: Name: Indoor Air Quality Monitor Material: ABS Display: LCD display Power: 1 x 3.7V lithium battery 1800mAh CO2 measuring range: 350ppm-2000ppm TVOC measuring range: 0,000 mg/m³-2,000 m³ / m³. HCHO measuring range 0.000 mg / m³-1,000 mg / m³. Temperature measurement range: 0 ℃ -90.0 ℃ (32 ℉ -194 ℉), ± 1 ℃ / ± 1 ℉. Item size: 6.93 x 2.87 x 1.14 inches. Item weight: 200 g. Package includes: 1 x air quality meter. 1 x USB cable. 1 x ABS Plastic Storage Box It takes 120 seconds to start the product.