11-in-1 Air Quality Monitor - Portable Indoor Air Quality Detector with Stand, Real-Time Test for AQI, CO2, PM2.5, PM1.0, PM10, TVOC, HCHO, Particles, Temperature & Humidity with Aler (Black-Black)

I'm so glad I bought this. I knew there was something going on in my house because I was having a lot of sinus issues, but I couldn't pinpoint it. When I stayed away from my house, the issues disappeared so I knew it had to be home. Immediately after I got it and turned it on, this monitor picked up a problem. It was so easy to read and right on the money when it came to accuracy. It will be staying in my house from now on!

Very durable and accurate machine. The battery life is very good. I grab this little machine to measure air quality in the house and it also measure the humidity as well as other features.

I just moved to a new home and was concerned about the chemicals of the paint and new furnitures. This air quality monitor gives me peace of mind knowing what I’m breathing in. It shows clear, real-time readings so I can actually see how the air changes in different rooms. The display is easy to read, and setup was fairly easy. It’s also light and portable which I like a lot.

it works without a hitch

Works well and has a nice stand

Awesome device very sensitive. Biggest complaint is the battery life. On a full charge it dies less than 24 hours.

Just received the air quality detector and it even includes the charger for the monitor, so i don’t have to worry about it. I bought this monitor to check the air quality at my house, it seems useful for me. Easy to set up and use.

I was hoping to use this air quality monitor to determine how effective my air purifiers are, to check whether my central AC's filter is doing its job, and just to get a general idea of how the air quality is in different rooms of my home.Sadly, it's just entirely too inaccurate, and not at all reliable.The temperature and humidity readings are somewhat close to what they should be, but are consistently off by several degrees and percentages.The CO2 readings are similarly accurate, and at least can be used to get a general idea of the increase in CO2 in a room, but the particle counts aren't even remotely meaningful they're so off.I'm getting measurements of 0 across the board for all particle counts, regardless of the room it's monitoring.PM2.5, PM10, PM1.0, HCH0, TVOC, all zero, as well as the AQI, even with my window open after the gardeners were mowing and using the blower outside, and my air purifier's sensor showing poor air quality.I'm sneezing, and my allergies are going crazy, but this air quality monitor is telling me that I'm basically in a cleanroom.The only time the numbers rose even a little was when I set the monitor outside, and I'm in a very pollen heavy area.The plastic housing looks and feels flimsy, and about the only thing I can credit it with is the nice bright display, which is easy to read, and looks great.The lack of wifi or smart features would have been fine if the device had accuracy to compensate with, in fact its simplicity is what makes it appealing, as it's easy to use and understand, but as it is there are much better options.