Carbon Monoxide Detectors 3 in 1 Plug in Portable Carbon Monoxide Detector with Temperature Humidity Sensor Clear LCD Display Sound and Light Warning for Home Office Hotel Travel

I like it

A useful product for your home that is heated by a (natural) gas-fired forced air central heating system.

Easy to setup. Just plug on and away you go. Simple and works well.

So easy to install right into an outlet. Great quality for a great value!

Great alarm that is plug and play, you can plug this into any outlet anywhere and it will start monitoring. You can even use this on a power station while camping if you wanted to make sure the air in the tent is okay. Easy to read and easy to hear it. It will also beep when it gets unplugged.

I gave this a few tests and it seems like the particle count never changes from 0. I had it plugged in close to my gas stove and after cooking for a while I expected the particle count to change but it stayed at 0. It might be working as intended and only updating after a while but the fact that the reading isn't changing at all is concerning and hard to verify. I am tempted to use it in my garage when working on my cars/motorcycles and see if it changes.The humity reading seems way off as well. I was showing 38% humidity and after about 2 hours of running my humidifier (about 6-7ft away from the unit) the reading was still showing 38% (the humidifier went from 20% to 60% in the meantime...).The temperature reading is changing but it's way off. My house was at 71 degrees and at that time the unit was showing 77 degrees...

I've installed the 3-in-1 Plug-in Carbon Monoxide Detector in our home, and while the temperature and humidity readings seem to be functioning, updating as expected, I've got some reservations about the CO detection. It consistently shows 0000 CO ppm, which, living in a big city, I find a bit hard to believe. There should at least be some trace levels, right? That's why I'm not entirely convinced it's working as it should. I plan to give it a proper test in my garage where I can control the environment better, and I'll update this review after that. For now, I'm giving it 3 stars because the device does offer peace of mind with its other features, but until I'm sure about the carbon monoxide detection, I remain cautiously optimistic.

So i installesd one of these in the bedroom above the garage in my home. It was easy to install, just unwrap and plug it in. At first i wasnt sure if it was working because the temperature and humidity was always the same after a couple days of checking it. So i unplugged it and moved it temporarily into the kitchen. Once it did the 60 second countdown the display popped up and i actually saw the temperature and humidity readings change slightly. It was a nice piece of mind to test that it actually was functioning. If you press the "Test" button it just beeps. So if your like me and are unsure if it was actually taking readings i suggest doing what i did. Its not back in the bedroom and i have piece of mind knowing if a vehicle warms up in the garage on a cold day the alarm is there to indicate to any family members that too much carbon monoxide is building up. I really like the size and design of this unit too. Its sharp looking.