6-in-1 Air Quality Monitor, Multifunctional Indoor Air Pollution Detector for PM2.5 and PM10, Carbon Dioxide Level Monitoring

❤6-in-1 Air Quality Monitor: Try this new multifunctional air quality monitor, capable of simultaneously detecting PM2.5, PM10, HCHO, TVOC, CO, and CO2, unlike other air quality monitors. ❤Large Screen: This air quality monitor has a large screen that allows you to view your test data more clearly and easily obtain results. ❤Portable Size: This monitor is small in size, so you can use it on your desk without it taking up too much space, and it's easy to carry. ❤Wide Range of Applications: This CO2 display can be used at home, in the office, at a train station, in a hotel, and much more. ❤ Four-color alarms: Four different colors indicate the monitored air quality: green for good air quality and colors ranging from yellow to orange to red for poor air quality.