They seem to be good items. I installed quickly with no issues tested and they seemed to be functioning, but only time will tell if they last the full 10 years. There were a lot of good reviews that i looked at before purchasing. The 10 warranty, I'm not certain it exists, couldn't find on their website. You must keep receipts and have Manufacture date, date installed, which may be 2 to 10 months different. I know that first alert had a 7 year warranty and they honored it.

I used only Kidde smoke and carbon monoxide detectors in rental properties for 30 years. I had two bad experiences with the other well known brand, then switched to Kidde after seeing they're top rated in a national consumer magazine. I've never had a bad experience with Kidde detectors. The 10 year lithium battery models save money in the long run and a chore every October.

They seem like a high quality smoke and carbon dioxide detector. We ordered 4 of them and they were easy to install. Tested them and seem to be in good working condition. Helps bring peace to my mind.

Can’t speak for its effectiveness, thankfully. But installation and set up was very easy. Easy to test

I only buy this brand. The 10 year battery matches the 10 year shelf life of product, so its a no brainer.

super easy to install, no wires and if the built in battery last 10 years like they claim with no chirping, well worth the money

it's maintenance free with internal batteries and detect both carbon monoxide and smoke with a 5 year guarantee

I love the item and that it will last us 10 years. Hate that something that is needed for everyone costs that much, especially when you have 4 floors and need everything covered.

I don't like you have a smoke detector using a sealed lithium battery and lithium batteries can start fires so if IT starts the fire the detector is shot and I couldn't find an old fashioned 9volt. Its STUPID to use a fire hazard.. even marked on it.. as fore prevention

We bought 6 of these 2 years ago and the 3rd one died a couple days ago. What a waste that there is no battery to replace. We're going back to battery ones but will probably try another brand because we switched to this kind after not having good luck with the battery Kidde ones. These are safety devices-they need to work reliably. When they die so quickly, it makes me question how well they work at all.