Temtop M10+ Indoor Air Quality Monitor, 6-in-1 CO2, PM2.5, VOC Detection, Smart Temperature & Humidity Sensor, with App Connectivity for Home Air Quality Testing & Analysis

Can’t complain. Got this because our EcoBee thermostat kept saying the air quality is poor. Turns out EcoBee’s are not calibrated properly a d give you false positives all the time.

This is a very good product. I moved to another state that has poor air quality and I had some breathing issues. I am using this all the time to check and adjust the air quality in the house. It really seems to work well and the charge is amazing. I have had it since October and have had to only charge it twice. The first time I just took it out of the box and just starting using it. The display on the unit is very easy to read and you can make several adjustments to customize it for your liking. It has alarm sounds so if you want to have an alert when something needs your attention it will do that. Clock, temp and humidity is very nice feature as well. The app is absolutely a plus as well as it tracks your air quality over time. This unit for the money will be well worth it for years of service. It may cost a little more but I have gone through a few that only last days before the charge just gave out. Nice materials for the outer casing it used as well and just sitting on our fireplace mantel it just fits in with the room.

Won't sense below 32° F, but other than that I like it

strange smells in home ,always not feeling well purchased to check air quality ,found all to be within parameters I am now happy to rule that out.

The marketing for this product discribes itself as "meticulous" and "real time" to imply it is fast to respond and doesn't miss anything. I have sat infront of a fire for close to 30 minutes now and it's still saying the air is clean. It seems to turn on once every hour takes a few samples then turns back off missing everything between. It's rather useless for everything but long term averages in a static environment. Also find the claim of "comprehensive" alarm to be funny. It has 1 toggle for the alarm, on or off. That's it, it in fact could not be simpler. You can't even change what reading the alarm goes off because of. Rather disappointing for 130$. I will be returning it most likely. Much better is available for slightly more and the same quality is available for lessOne thing I can say is the co2 sensor seems real and isn't a virtual one. It's difficult to see how it responds to tests because it doesn't respond to anything for nearly a hour

I was quite pleased with this air quality sensor. We live in Florida and suffer a closed house for most of the year. So being how long we live in AC with little fresh air I was expecting the air quality to measure poorly. Surprisingly it measures pretty well. The APP gives good data plots on each factor, and the sensor response to change is quite impressive. One afternoon we were cooking a dish that smells up the house, so we lit a candle, Within minutes the PM started climbing along with the VOC. The battery truely does perform well. I've ran it for days right out of the box and have plenty of charge left. It's not a large device, about the size of a pack of cigarettes. I recomend it. Buy one of these and measure the AQI before you spend a bunch of money on air purifiers. I found I don't need them.

Very useful. Worth the price. .

I have an older version Temtop CO2 meter and this new one has a much more readable display and the CO2 levels that it shows are much lower. I tend to trust the newer one because when calibrated outside it reads 400 ppm which is what it should be.I was really looking forward to the ability to track CO2 over time but the app makes this virtually impossible. When you tap the current value in the app it shows a graph of hourly values from midnight to the last hour. There’s a back arrow and when it is pressed a graph from 2 days ago is displayed. When the forward arrow is pressed nothing happens.The app also has difficulty maintaining the Bluetooth connection and it sometimes displays a 401 authentication error. The iOS App Store states that no data is collected by the developer but it is troubling that you have to create an account and be logged in to use the app.For $80 I expect the app to work better and more reliably.