Temtop M10+ Smart Indoor Air Quality Monitor for CO2, AQI, PM2.5, VOC Temperature & Humidity with App

Initially the device sent had signs of use, but after a replacement it all seems ok now. The device itself is solid with good sensors and nice e-ink dipslay. There are some things could get improved however. Most importantly the refresh rate when on battery to has an option of more frequent readings, even at expense of battery life. Let the user choose. My other reccomendation would be to get rid of AIQ as no one is interesting at projection values as they might be wrong. Adding PM10 if the sensor is capable is much more relevant as many people suffer nowadays from alergies from pollen and thus PM10 is very useful at large in addition to PM 2.5.

Very nicely engineered unit, great display with a really good app too. I like that the display shows all of the information clearly, and the app is very useful for seeing trends on the graphs. Battery life is impressive - I've been using it for a few weeks and I've not even charged it yet.

I find it user-friendly and clear in use with the display. I now know when our rooms needs better ventilation. The battery lasts a long time. The app does not always work well in the bluetooth connection

I'm very glad to have that analyser, i can be warned when my store emits too much unhealthy substances.
I don't use the app, it doesn't seem like a very useful feature for me.
The screen is easily readable and agreable to see, and the object in itself looks good and well made.

I like the e-ink display, it’s much better than LCD. All function work like described, including app.