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

Bought the device for the CO2 sensor, which can be calibrated for accurate readings. Had suspected that the bedroom may be “stuffy”; after the first night, the sensor had readings close to 2000!. From that point on, kept the window slightly open and that made a big difference in the readings, e.g., unhealthy to good.In my mind, the other sensors are an added bonus, and I primarily look at the VOC, PM2.5 and AQI readings. They seem to stay in the healthy or moderate range. The only thing missing is WiFi connecttivity; you connect via Bluetooth with your phone or similar. More expensive than the “inexpensive” devices sold; but the sensor technology seems to be of very good quality. If you need a CO2 sensor and others, I would recommend this device!

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.

I don't think it is terribly accurate, I was able to compare it to another device that costs more (a neighbors) but it was within the range enough for the price point, I wouldn't have paid what my neighbor paid, I just want to have a reasonable baseline.

I bought this air quality monitor to check the air in my basement after a furnace issue. Right out of the box, it was easy to set up — just charge, turn on, and it’s ready. The readings are clear and straightforward, and the device helps me understand what’s in the air I’m breathing. It’s been especially useful for checking PM2.5 levels and making sure everything is safe. The peace of mind this monitor gives me is well worth it. Highly recommended!

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

Works as advertised and the phone app is nice too.

Works great. Bluetooth and Wi-Fi compatible application allows you to download and read multiple days with graphs of all the readings.

Awesome unit