(6 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.

As a mom, safety is a top priority—and this Kidde carbon monoxide detector gives me serious peace of mind. I love that it plugs right into any wall outlet, but also has a battery backup so it still works during power outages (which happen a lot during storms where we live). The ease of use is amazing. Assembly takes less than 10 second. We put one in every room in the house even the hallway It was super easy to install—just plug it in and it's ready to go. The digital display is clear and easy to read, and it even shows real-time CO levels, which I really appreciate. The test/reset button is simple to use, and the alarm is loud enough to wake us up if there's ever a danger. Thankfully, we haven't had any issues, but it's comforting knowing this detector is quietly doing its job 24/7. Highly recommend for any home, especially with kids!

This Kidde carbon monoxide detector was easy to install—just plug it into the outlet and you're done. Instructions are clear and easy to understand. I like that it has a battery backup, so it still works during power outages, which gives some extra peace of mind. The LED light is clear and the test alarm was definitely loud enough to get your attention if there's an issue. It's also nice that it doesn't block the second outlet when plugged into the bottom socket. Overall, it feels well-made and does what it's supposed to do without being complicated. Good option if you want a straightforward, dependable carbon monoxide detector for your home.

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.

Have a home with an older boiler furnace. Having CO detectors is a must. Purchased these given they seemed a good value. so far, so good. Easy to use and set up. Supposed to last 10 years...we will see. I recommend this 2 pack if you have a 2 story home.

Very reasonably priced and highly effective CO alarm. I have purchased several for my rental properties to meet code requirements. I am satisfied and feel confident that my tenants are protected for many years. Exactly the same alarm as those costing 2-3 times as much.

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.