Temtop Co2 Monitor Indoor Air Quality Portable Meter, Co2, Temperature, Humidity Home, Office Or School

It does what it says

The sensor seems to work fine but I couldn't connect it to their app. There's no special button or mode for Bluetooth on the device, the manual says to simple connect a device from the app but the app can't see my device regardless of how close it to my phone. Deadend.

I was sceptical at first, but wow! the battery last for ages and the item is super accurate. great value for money and super portable. the stand is magnetic so it can be folded up and taken home in a small bag if you don't want the cleaner to run off with it :)

This was tested against a very expensive co2 meter that I borrowed from a friend who works in confined spaces. It was very close there was 18 point difference. This was very affordable. The read out is not very high in contrast but it is readable. The temp and humidity levels appear to be accurate as well tested side by side my analog wall meter which I usually tap on. There is no backlight on this. The readout is equal to a large calculator. I am very happy with this purchase especially for what it cost. It is rechargeable so I don't have to purchase additional batteries.

good item

Fonctionne parfaitement. Mode d'emploi sur i ternet en français. Je le conseille .

半額でChina製の知らないメーカーを買おうとしたけど（Temptopというメーカも知らなかったが）、１年以内に壊れたというレビューを複数見て、この商品は２倍値段がするが、外国のレビューが高かったので購入した（日本人レビューはなし）。小型で表示も見やすく、CO2、温度、湿度とも正確に素早く表示するので安物買わなくてよかったと思った。アプリをダウンロードしてスマホでいろいろとデータ見たり、時刻をこのモニターに表示できたりできるようだけど、なぜかスマホとbluetoothで繋がらない。CO２濃度だけ見れればいいので、面倒だから繋げないで使用している。