LifeBasis Air Quality Monitor Indoor, 11-in-1 Air Quality Detector with Stand, Real-Time Air Meter Test AQI, PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, Particles, Temperature and Humidity, Dual Alert -Black

Solid Choice For Monitoring Air Quality
The temp and humidity were on par with others I have in my home. The CO2 monitor seemed to work well. I tried it in different locations and received the readings I thought I should be getting. I open doors and windows each morning to let fresh air in and use this device to know when to close them back up as my reading are around 950 in the morning when I get up, and after opening windows and doors in the morning it goes down to about 450-500. It’s very easy to use. Just be sure in the beginning to take it outside and let it run 30 minutes, then do the CO2 calibration and that’s it. I would say for the price, it is as good as it gets. I do analysis paralysis before I buy something, and this one is doing the job for me. Also the PM monitors are on point too as when I run my air purifiers, you can see the values decrease.

Hanheld Air Quality
Good device, the only thing I would add is that it measures carbon monoxide.

Reliable readings
I wanted a portable air quality monitor, especially one that I can carry around. While most air quality monitors are relatively portable, they are generally not shaped in a way that allows you to carry it in your pockets without bulging out. This one, on the other hand, is relatively flat, and fits into a pants pocket with relative ease.One concern I did have with many of these air quality monitors are whether the sensors provide real numbers based on real sensors, or if they infer other values based on a single sensor (usually TVOC or organics based, since that’s usually the cheapest sensor available). On this detector, placing it near an ammonia solution only includes the TVOC values, and not PM2.5 or CO2, which is expected. On a low-quality sensor, typically the ammonia solution would significantly spike the CO2 readings.Putting the sensor next to water vapor only increases the PM2.5 and humidity reading but not TVOC or CO2. This is also the expected reading from a detector that has actual sensors built-in to detect these variations. The PM2.5 values also match up with my other portable and PurpleAir sensors installed outside. I also like the fact that this detector has a way to do CO2 calibrations, which is something that most detectors try to do on an automatic basis or not at all (this makes the reading somewhat inaccurate for those sensors if the sensor is inside a stuffy room constantly). The ability to calibrate manually is not something I usually see, so this is definitely a good addition.Considering the fact that most detectors that have real CO2 sensors generally cost close to $100 or more, this is actually a decent detector that is decently priced and provides good values. While you won’t be able to monitor the values online since it has no data export or Wi-Fi/BT capabilities, it does make a good travel sensor that you can carry around.