14-in-1 Air Quality Monitor, Indoor Temperature Sensors, Detect PM2.5/PM1.0/PM10/CO2/CO/TVOC/HCHO/Temperature/Humidity, Air Quality Meter for RV Home Office School Hotel

It is a good product to have in my home to monitor the air qualities. I never knew that this prodcut exist for home use and now it is at the affortable price that I can purchase one. It can monitor not only CO level, but the PM2.5 and CO2 etc. I gave me a peace of mind that the air quality is not big concern in my living rooms, the basement of the garage. I also also accurately tell the humidity level.This product is battery powered but it only lasts about 6 hours. for continuous use, I will have to plug it in or to use my backup battery bank to power it for a long period time in the area that is not accessbile for a power extension cord.The reading is pretty accurate. It sent alarms when the PM2.5 level is too high in the kitchen when my wife was cooking and the temperature and humidity readings are accurate too. it is also an alarm clock too if you put it sideways.

It is not only beautiful in appearance, but also very accurate. Its display is very clear and can monitor and display the air quality at home in real time. I have a baby at home and am particularly concerned about harmful substances in the air. When the air quality is not good, it will have a reminder function, allowing me to open the window or use the air purifier in time. The functions are very complete and the operation is very convenient. It is an indispensable little helper in my home.

This air quality monitor is super handy! It gives real-time readings for CO2, VOCs, and even formaldehyde. The screen is clear, and the alerts are really useful. The companion app is a nice bonus—it lets you track air quality over time and get alerts remotely. Battery life is decent, fast charge, and it’s easy to use. Definitely worth it for peace of mind!

This air quality monitor is a veerrryyy impresssive! It provides accurate real-time data on PM2.5, CO2, TVOCs, and more, all displayed on a clear 2.8-inch TFT screen. The alarm feature is a great touch for safety, and the smartphone app adds extra convenience. Compact, rechargeable, and easy to use—perfect for home, office, or travel. A must-have for anyone serious about indoor air quality! Lvoe this thing!

I got two new multi-stage ACs installed this week and I wanted to check the improvement in air quality from running them.So I saw this 14-in-1 unit had great reviews. When the unit arrived, I saw it was very small and extremely light. Almost like a child’s toy. Anyway I set it in the middle of my living room and left it there for a few hours. I checked the monitor and noticed that the CO2 level was extremely clean (less than 400 ppm). Thats less than what most people will read in their open air backyards. Something seemed fishy, so I began blowing directly into the sensor. Nothing.My wife wanted to test the particulate sensor. So she began dusting right next to the unit. No change over several minutes. Then the battery ran out. After less than 3 hours it was completely dead. So I charged the unit using the included usb-c cable.When the unit was charged I turned it back on. However I noticed when I rotated the unit the air quality monitor display disappeared. What?! Instead a stop watch interface appeared. No joking. My air quality monitor turned into a stop watch when I rotated it LOL.IMO, this thing is not an air quality monitor and more of a fake toy that is posing as one. Save your money and buy something more up scale from a reputable seller. I went with an AirThings View Plus. Yes it’s 3x the price but at least it’s what it claims to be.

I would give it a better rating but this is a second one I got first one was retuned do to a bad screen the second one while screen is good battery is terrible and only lasts like 3-4 hours max. At this point I would not buy it again and am just going to cut my losses and just use it like it is and at some point replace it with a better quality one

This monitor can display the concentration of different pollutants in real time, helping me take timely measures to improve air quality. It is easy to operate and provides accurate data, making it very suitable for friends who care about their home environment. Since using it, the air in my home has become much fresher and my sense of health has improved a lot. I highly recommend it!

When the air quality monitor showed the humidity just under 30%, I ran the humidifier all night but the value on the monitor didn't change; remained just under 30%. The monitor was relatively near the humidifier. The value only increased when I held the monitor right into the path of the humidifier steam, at which point it jumps up to nearly 60%. As soon as I took it out again, it dropped to its former value. This makes me wonder if there's an issue with the top-rated humidifier, an issue with my room sucking the moisture out, or an issue with the monitor tracking how humid a room is beyond the monitor's surface. Nonetheless, I like other aspects about the monitor including that it tracks all of the other things (hopefully accurately), including 1 or 2 that most monitors don't track, and it's easy to charge; just wish I knew why humidity doesn't seem to show what would be expected. I'll update my review if I find a clear answer on where the fault is. Still 4 instead of 5 stars in the meantime because (1) the battery seems to deplete relatively quickly and (2) device gets pretty hot.