18-in-1 Smart Air Quality Monitor - Indoor WiFi Air Quality Detector with Dual Chip, Real-Time for AQI, CO2, PM2.5, PM1.0, PM10, TVOC, HCHO, Time Display, Temperature & Humidity with Aler (White-B2)

This unit is built well and feels like quality plastics were used. It monitors the air really well with a tiny fan inside to move air across it's sensors and I have bought 3 more for my fam to use in their houses. So that's 4 of these exact ones that i can personally speak to. One I have running for almost 4 months 24/7 and the 3 I bought I had running for 3 weeks before giving them away. I own 2 trusted other brand air monitors that I look to as a control group for testing. The 1 I own and 3 others all read the same correct values and react correctly to breath and particle mater testing, and having a neighbor blow smoke into them sends them into a orange and then red parameter level quickly. Great functions like audio alarm and HCHO and TVOC monitoring for volatile organic compounds (building materials, cleaning products, foams/carpets, paints and various smoke) is great! The Co2 monitoring is probably the most useful day to day reading to watch as it shows the build-up of of the gas we all breath out. Co2 at my huose is always highest in the mornings after sleeping, a good reminder to open windows and bring in fresh air. The app is user friendly and easy yo install but not needed for anything but screen auto-brightnes, wich is unavailable without the app. The daily operation and usability is unaffected by not having the app. Lays flat, can be wall mounted or stands vertically easily. Battery lasts about 5.5 to 6 hrs with the screen constantly on, or can be left plugged in. My experiences have bein excellent with this company's air monitoring products, I have 2 of their hand held units also and they too test well. Great value for what it costs vs what it does.

Very important for your health

Es exacto y sensible

I'm so glad I went with this air quality monitor. It's very sensitive and picks up someone lighting a cigarette within seconds. I have a three level home and I tested it in all three as well as outside and it gave me different reading quickly. I ordered better quality air filters the same time as I did the monitor but the monitor arrived the day before. Around two hrs after I installed the new filters I was able to visually see the difference they made in my home on the graph on the app. The app is free to use and doesn't need a subscription & has the option to add smart devices. The quality is outstanding for the price considering how sensitive it is and I now know that my homes air was definitely contributing to everyone getting sick so often as well as getting random sore throats. I have 4 small children in my home and three are babies. The air quality in my home was very dangerous for them and I didn't even know until I purchased this monitor. It works and is very easy to set up. I can't say enough good things about it. I'm so glad I decided on this one.

Good one but delivery time too late