(2 pack) Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators

I wanted a plug in co2 detector for my office and also for traveling. I also needed one I could easily reach when it starts chirpy low battery. This fits all needs. It's easy peasy to open and just plug in since batteries came with it. I wanted one that used replaceable batteries as the sealed type with lithium batteries cannot be replaced and, in my opinion, fail before the 10-year life is up. I wish it was also a smoke detector but it's not.

We needed to replace our two carbon monoxide detectors because they said to after 10 years. Well sure enough, 10 years and two weeks after purchase they needed to be replaced ( it will beep constantly when it's time ). We decided to stay with the same brand because it's been very reliable. We have one in the kitchen because we have a gas cooktop and we have one in the basement for the hot water heater.

Long life of backup batteries. But, when the low battery alarm started, new batteries would not solve the problem? Still recommend and rated very high due to very long life of the original, nearly identical monitor. Installation was very simple--just pull the protective tab for the batteries and plug into the selected wall power socket.

Kidde is a most trusted brand. This just plugs into a wall socket. Easy peasy. A carbon monoxide detector is an absolute must for every household. Don't put off getting one. Carbon monoxide is colorless and odorless. You need a detector. Too many deaths that could have been avoided occur every year due to carbon monoxide. You could actually take this one with you if travelling since it just plugs in to any electrical socket.

These units have an internal clock that starts the 10-yr end of life alarm. Have a spare on hand. When the time comes it may be while you're sleeping. There is a button[s] to push to silence alarm, keep it checking for CO and replace it at a more convenient time but I didn't remember that at the time.

The only complaint I have about this carbon monoxide detector is that on a few occasions it randomly beeped/chirped. I have it plugged directly into the wall outlet and there's nothing obstructing the detector. I have owned several of these over the years and never had any issues with them just this one.

It's an early read on this product. Hard to rate its battery life when I've only had it for a week. It was easy to set up. I do like its 10 year warranty but does that mean I experience a home problem bf using this warranty? I do smell small signs of gas near my attic where we have heating ducts .. yet this device has not been triggered… I'm on the fence of whether this device detects lower concerning levels for a customer.

I received two separate alarms, not a two pack. They were both in the same shipping envelope. The box one of them came in was heavily damaged and the alarm had obviously been removed, handled, and replaced in the plastic bag it came in. It was dirty and had a small plastic spur on the back broken off. The seller was trying to unload an alarm that had been returned damaged. At the least, this is very shoddy business practice. I expect better treatment.

first of all it was used which was supposed to be new! it doesn't work and it is taking a lifetime to return this!

Unsafe unit. Possible fire hazard. This device failed within a couple of weeks. It was in my cabin, and started giving false alarms one morning. There were absolutely no symptoms in me or my dogs, so I got a backup detector of another brand that did not detect carbon monoxide. Then, by the end of that same day, it kept alarming over and over. I opened the battery compartment to remove the batteries to silence it, and there was a clear liquid all inside the battery compartment. I removed the batteries (two AA batteries, Kidde brand) and one of them was actually making popping noises. I examined the unit closely and saw that the plastic in the upper-right corner was brown, suggesting an internal burn. I cracked the unit open (since I was never going to try using it again), and in fact the circuit board was burned in the upper-right corner, right where the AC hot wire (the black wire) was soldered to it. My cabin's AC power source is a battery-powered inverter, which might not produce a clean sine wave. That can sometimes lead to excess heat in electrical devices, but if that's the cause of this failure it's still unacceptable. MANY people use AC inverters for power, especially people in cabins who depend on combustion heat. It is also possible that the battery which was making the popping noise and leaking was the cause (from some sort of internal short), however, this seems unlikely. I do not recommend purchasing this unit.