LFF LAQ-961 Carbon Dioxide Meter

I like the variety of information this small unit provides. I watch the CO2 PPM change. To test it I put it by a drafty window and saw fluctuation as compared to a closed-off room with people breathing. The humidity also changed with an incoming storm as I knew the humidity was rising. The display is easy to read. For a monitoring unit, I would want to have it plugged in most of the time as the battery life is limited. The battery does seem sufficient to take around to different parts of your house to test if you don鈥檛 want to keep plugging it in.

I live in a tiny New York apartment with my family and in the winter we usually keep the windows closed and, at night, bedroom doors shut.My wife was complaining about headaches so I moved my Withings scale (which has CO2 monitoring built in) into our bedroom. After reviewing the data, it鈥檚 true that there were moderately elevated CO2 levels (1,000+). So we now leave the window in the bedroom open a bit and the levels are reduced (~600) and headaches too.All of this is the reason that I got this CO2 monitor for the kids room. Even though it has a rechargeable battery that last a day, I keep it plugged in to a USB-C charging cable 24/7.The unit is much smaller that it appears in the photographs but the dimensions provided are correct.The display is colorful and clear including not only CO2 but also humidity, time, and temperature.It has CO2 alarms but I don鈥檛 use them.I found the unit to be accurate relative to the Withings scale CO2 measures. I did manually calibrate the unit by leaving it on an outside windowsill for 24 hours.All in all I鈥檓 very happy with it and my kids like it too.

We are using tgis devuce to track humidity in our room..it also tells you temperature and co2 level....

I just found that heating system has failed in my home because of this detector I bought, highly recommended!

Not dead on accuracy , but close . Keep plugged in , battery doesn鈥檛 last very long .

Out of the box, this C02, RH, temp meter was spot on accurate with all three parameters. Battery life is fantastic as well. Super easy to use and high visibility.

works very accurately, it is mobile and convenient, the battery lasts sufficient amount of time. All you need is to turn it on, super easy to use

Took a chance and bought with only 2 reviews. I was so impressed I had to leave a review, which I never do :)

This gave me an insight about the condition of the air quality inside my medical office, in addition to providing temperature readings and humidity

In the living room we have a clock that says time, humidity and temp and then an air purifier that shows the air quality with a color. In our bedroom we only have an alarm clock and an air purifier without a air quality sensor.

I got this to kind of do what the others can do to have it even as well as track how much emission there is. I set it outside and the quality was within range. With 2-3 people in a ventilated room the number reaches 1800 range just because we are all emitting CO2. At that range it shows to not be good which to be honest is still correct even if the numbers are not pleasing lol. Uses type C for charging and does it very quickly and lasts for a while. You can also change the birghtness of it as well.

Buying this CO2 monitor was a good decision, and everyone should get one.

It helps to monitor co2 levels to your specified concentrations, which can be adjusted.

It works extremely well. The battery life is quite long, which is nice. I highly recommend this, especially for such a great price.