Air Quality Monitor, Air Quality Detector for PM2.5 PM10 Particles CO2 HCHO, Air Quality Monitor for homes, M2000 2nd

This tool is great, works well, measures accurately and its simple to use. Battery life isn't the best but it dies last long enough to carry out the tests and fir the price ide say its good value.

Good product, accurate enough (at this price point) to monitor IAQ and can see trends in increased PM/CO2 molecules in the air. One thing to note that battery life is 3 hours tops if measuring PM and CO2 (aswell as temp and humidity) but it can be charged from a powerbank so factor that in and the battery life is brilliant. Annoying that I have to buy 2nd edition to actually export data ESPECIALLY when this isn't made clear on Amazon or by this seller. That being said the product itself is brilliant, but I recommend you consider buying the 2nd edition for the added ability to export your data and mess around with it in Excel/Jupyter.

I loved the many features of this air quality monitor, it even detects formaldehyde! The results are also very accurate, for example when the kitchen was being used, the PM2.5 number shot up. It showes whether the air quality is healthy, moderate or unhealthy. The one criticism I have is the design, the display is very simple. This air quality monitor helped me so much to determine whether windows needed to be open, and I have since had much better air. It is very simple to use and set up. I strongly recommend this to anyone!

Good quality, works as it should do and easy to download csv/excel spreadsheet.

I'm sensitive to the chemicals such as formaldehyde, benzene, toluene etc. I can feel that this device measures correctly because it correlates with my symptoms when I'm in a polluted air. I wish it had a TVOC sensor too; it would be great.

Well made (though rather large), feels professional and display easy to read. But the TEMP reading was consistently about 4C above all my other thermometers, and was very slow to react. CO2 reading was always suspiciously high. Therefore I had no faith in any of the other readings. A YouTube reviewer had also had very high readings, even when Amazon sent him a replacement. I therefore returned it to Amaon for a refund.

Although it comes in a random cheap metal case, the interface and readings produced seem to be very reliable. Major flaw is the battery is awful. Ok for use just in and around a home setting for a quick reading but if you are out on jobs with this device, battery is dead after 10 minutes from a full charge.

This is a handy device, probably aimed at amateur use. Readings seem generally consistent. One really irritating fault though - the setting of date and time is clunky and tedious, and worse still, the settings are forgotten when you turn the power off.