[9 in 1 MULTIFUNCTIONAL AIR QUALITY MONITOR ] New upgraded indoor air quality monitor that can accurately assesses multiple measures of air quality including concentrations of formaldehyde (HCHO), PM2.5, PM1.0, PM10, HCHO, TVOC, temperature, humidity, , Date/Time. It's very necessary to know the air quality of your living place [PORTABLE AIR DETECTOR] Spot check indoor air quality anywhere or leave device on for continuous monitoring,This easy-to-carry air quality detector can help monitor air quality , kitchen, bedroom, , school, car, hotel, travel, camping etc. especially in which has baby,child and pregnant woman. [EASY OPEARATION] This air monitor is easy to operate with just pressing the functional button, Updated user manual is very simple and easy to understand. The intelligent air tester can monitor the variety of the environment in a period your care about,You can take it anywhere to monitor air quality. At the same time, you can set a standard value of formaldehyde. If the density is higher than standard value, the device alarm., Weight: 3.09529015848 pounds, Manufacturer: Hfgdnchva