[This review was collected as part of a promotion.] This model was highly rated and you had the quantity needed in stock

[This review was collected as part of a promotion.] Don't know yet until I have more experience with the product.

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

[This review was collected as part of a promotion.] Checked several other onsite providers and found Walmart equal to Amazon.

[This review was collected as part of a promotion.] 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 bought this in Spring of 2025, and here I sit in December with it chirping randomly. No matter how many times I reset it or try to stop it, it continues to chirp randomly throughout the week. And I can't get it off the wall. So today, I am ready to smash it with a hammer and replaster... that's how crazy I am from the chirping of this garbage alarm. You too, can have this experience... just buy one of these "10-year battery" alarms! But I'd pass, if I were you. UPDATE: E-mail response was to replace the battery. Ummm... that's the reason I bought the 10-yr and they're not supposed to be replaced anyway, sooo... maybe that's someone new? Anyway, I called, and the nice gentleman on the phone says they're sending me a replacement. So I will enthrall you with my updates if anything goes wrong with the alarm in the next few months. We'll see!

combined smoke and carbon dioxide. 10 yr battery life

Easy installation and attractive

This item is not reliable. It beeps when there are no issues.