I bought this to bring with me on my travels as I noticed that carbon monoxide alarms are frequently not found in Airbnbs. The small compact shape and easy portability gives me peace of mind when I'm away. I tested the alarm and it detected levels of the gas pretty quickly, so I feel assured that it works. My only gripe is that the battery life is shorter than the advertised 90 hours. It's also nice that it displays temp and humidity and I have found those readings to be accurate as well as compared to other sensors I have in the house.

It was a great product and did what I needed it to do- detect carbon monoxide- which it didn’t… I was pretty sure I didn’t have any carbon monoxide in my home as I don’t have any gas engines or anything that makes carbon monoxide. I just purchased a home with a built in carbon monoxide detector in the alarm system… which would go off periodically for no reason as far as I could detect as again I don’t have any gas engines or garage connected to my home where one would park a car for instance… so for peace of mind and because I have guests staying in my home, I purchased for peace of mind. It was a great instrument- easy to read and I trusted it as I brought it out to my car and calibrated it as it did show carbon monoxide when by the car exhaust- just none in the home. I live close to a metropolis and I was convinced my home detector is picking up smog- and looks like I was right if it picks up anything - could just be a glitchy product on the home alarm system…

This is nice. Although I am not interested in the amount of humidity, I am interested in a Carbon Monoxide and Smoke Detector for our Airstream. We checked it out with the smoke and works and if the carbon monoxide alarm is as loud it will be great. It has a nice clear design and it is pleasing to look at.

This carbon monoxide detector is great because of its portability. It is the size of a hockey puck. I like that it is small and I can take it anywhere. It is rechargeable so no tossing away batteries. The screen is nice, clear and very easy to read. I really like the cute emoji status indicator. The temperature and humidity readings are pretty accurate i compared them to my weather station monitor. I have placed this detector in each of my rooms in my house for a few days to test for carbon monoxide and none was found. It is currently in my kitchen. My wife cooks a lot and this device will go off if she forgets to turn on the hood range fans. The battery life is very good. One charge lasted over a week. One thing I did not like about this detector is the round design. It does look nice, but the kick stand does a bad job of keeping the detector upright. When charging the battery the charging cable tilts the detector either to the left or right.

The CEKKIENA Carbon Monoxide Detector is an easy to install and set up detector that provides peace of mind. Accidents with carbon monoxide are a regular occurrence during winter when heating a home.

This carbon monoxide detector is a life saver. Two days after installing it, we forgot to let the windows open a bit at night to get some fresh air and it started beeping in the middle of the night. I had to quickly open the windows wide for the rooms to go back to normal.
I love how simple it looks, but gives you important information such as the temperature and the humidity. Also, it’s small enough to carry around and solidly built to survive drops. Too bad that the battery only lasts a few days, if you leave the screen on. And that it’s designed to be set on a flat surface and not hanged on a wall. It’s pricey too.

I like how this is more modern than the traditional ones that hang on the wall and look like a smoke detector. This has a digital read out. Mine says all zeros, I assume it is accurate as I have a hand held unit also - that isn't going off. This was simple to turn on and charge. Does NOT come with a plug for the charging cable, only the cord that goes into a USB port.

 super useful and practical carbon monoxide detector, it also gives you the humidity in the environment and the current temperature where you install it, very useful to measure carbon monoxide levels in your home, it is easy to understand if you do not have this alarm at home I highly recommend purchasing this