Features: Adopt a high precision sensor, air convection detection, and constant temperature detection quickly and accurately detects harmful gas in your home. The high precision sensor specially detects the concentration of formaldehyde /TOVC, reduces the interference of other pollutants, and ensures the accuracy of the measurement of various indicators. Adopt dry battery protection technology, formaldehyde detector service life is up to 10 years, built-in advanced voltage regulator circuit, automatic power-saving mode, long standby time. The formaldehyde detector with a high-quality lightweight shell, durable, portable and easy to use by just pressing the functional button; a large LED display, the data is clearly visible. It\'s easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby, child and pregnant woman.