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This First Alert Hardwired Carbon Monoxide Alarm with Battery Back-up meets codes where CO alarms are required for new construction. Installation is seamless with the use of a quick plug-in power connector. Additional features such as a microprocessor that limits nuisance alarms and a single test/silence button add versatility to an already efficient carbon monoxide alarm.
First Alert Hardwired Carbon Monoxide Alarm CO5120BN
Average Rating Based on 61 reviews: (4.8)
Great service - 01/13/2019
Reviewer: howell lewis
Perfect service , on time shipping fair prices
Fast and Easy! - 07/31/2018
Reviewer: Kimberlee Keefe
I needed a replacement because ours expired. Ordering from the First Alert Store was SO fast and easy! I'll ALWAYS shop here for these products for my home! Wonderful selection and arrived quickly!
Reviewer: Anthony Naples
Everything worked great.
Good product - 03/05/2018
Reviewer: Jennifer Bittle
Just installed today and so far so good. Arrived before expected delivery date. Thank you.
Perfect replacement! - 01/21/2018
Reviewer: Chad Goble
The battery unit went out on our previous device and a replacement wasn't available as that device was discontinued. I called First Alert and they let me know what the replacement model was that would utilize the same wiring. And just as they said, this device fit perfectly and was super easy to install.
Perfect - 12/05/2017
Reviewer: Robert Fantaroni
I found the right model, ordering pretty easy and received alarm within a week, so very pleased
Reviewer: Lowell Marx
Replaced same item installed 17 years ago in our new home.
replacement CO2 - 04/21/2017
Reviewer: Sharon Scholten
easy ordering, arrived on time, perfect replacement for the expired alarm replacement
Happy Customer - 04/18/2017
Reviewer: David Bloom
Easy to order, good price, on time delivery and it works!
Satisfied! - 04/08/2017
Reviewer: Keith Kartman
Shipped promptly, works well with no issues. Thank you for a pleasant process.
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