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Get alerted to dangerous carbon monoxide leaks with the First Alert CO5120BN Hardwired Carbon Monoxide Alarm with Battery Backup. This carbon monoxide detector uses an advanced electrochemical carbon monoxide sensor that accurately detects elevated CO levels and comes equipped with a microprocessor that helps minimize false alarms. The alarm's plug in power connector makes installation quick and easy, while its tamper resistant mounting bracket lock keeps the alarm secure. Featuring a 9 volt battery backup, this unit is designed to offer seamless detection, even in the event of a power outage. An 85 decibel horn sounds if carbon monoxide levels are too high, and a warning chirp notifies you when the battery needs to be replaced. This carbon monoxide alarm can integrate with up to 12 other First Alert or BRK hardwired alarms and up to six other compatible devices such as bells, horns, and repeaters making it ideal for comprehensive coverage of large households or facilities. A latching alarm indicator automatically identifies which unit in the series triggered the alarm. And thanks to the convenient test/silence button, the alarm can be checked easily to ensure it is functioning properly and false alarms can be muted easily.
Amazon.com
The BRK hardwire carbon monoxide alarm detects dangerous CO gas and allows you peace of mind with its battery backup. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources including gas or oil furnaces, gas clothes dryers, water heaters, fireplaces, wood stoves, charcoal grills, gas ranges, and space heaters. A clogged chimney, improper venting, and attached garages can also cause carbon monoxide accumulation. According to the Consumer Product Safety Commission (CPSC), at least one CO alarm should be installed near a home's sleeping area. This BRK alarm is perfect for bedrooms, as well as hallways, and basements.
The BRK CO5120BN hardwire CO alarm with battery backup includes these features:
- Quick plug-in power connector for easy installation.
- 120-volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
- Microprocessor controlled for fewer nuisance alarms.
- Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
- Automatically performs internal test of functionality.
- Latching alarm indicator which automatically identifies which unit initiated the alarm.
- Battery drawer lock and mounting bracket lock for tamper resistance.
- AC power indicator and alarm indicator light.
- Low battery warning "chirp" and missing battery tab.
- Swing open battery drawer for easy battery installation.
- 9-volt battery backup for peace of mind during power outages. All BRK Electronics carbon monoxide alarms are listed to UL Safety Standard 2034 for residential carbon monoxide alarms. Includes 9-volt backup battery. 5-year limited warranty.--Bree Norlander
What's in the Box
One carbon monoxide alarm, one 9-volt battery, and user's manual
buyer
Reviewed in the United States on January 5, 2025
Works
G&T
Reviewed in the United States on January 20, 2025
This was installed in our home, wired in with a battery back up and we did not know they had a life to them. We started having issues with the alarms, we have 3 beeping on and off for several weeks. We tried changing the batteries, resetting etc. But every time a couple hours, days later it would start again! Most of the time during the night! How frustrating! While looking at the First Alert website we discovered that the alarms have a life to them. So off to buy a replacement to make them quit beeping! It worked for the CO alarm and now we have protection and quiet again! I do recommend the alarms.
L. Stephens
Reviewed in the United States on August 28, 2024
It hasn't gone off so I'm assuming it works. Was easy to replace old one.
CMW-New Orleans
Reviewed in the United States on July 24, 2024
These were a direct replacement for my existing smoke detectors that did not have carbon monoxide detection. Easy plug and play replacements.
Robert Wolfe
Reviewed in the United States on November 14, 2024
I replaced several original installs. Perfect.
Ashley Smith
Reviewed in the United States on October 29, 2024
Noise level is great, battery life seems to be good so far, easy to install
Penelope Pitstop
Reviewed in the United States on February 2, 2020
Had ordinary smoke detectors around the house, but with recent remodeling, we took advantage of open walls to install hard-wired/connected detectors, and wanted a CO specific unit for the kitchen area (gas stove), where you can't have a smoke detector near the kitchen, for obvious reasons -- to this day, I think of my childhood every time a restaurant claims they make [a recipe] just like mom does, and yet I never hear their smoke detectors going off, LOL.First, the hard wire plug used for First Alert is the same between their smoke, heat, and CO detectors, but the mounting basses are different sizes, to prevent accidentally swapping in an incorrect detector for a another. We learned this last part by putting all the mounts in a tool bag and installing them 'randomly' where each unit would go...easily corrected, but it does make sense for safety sake. Second, there are reviews about First Alert being bought out by, or partnering with, another company that raises the question of compatibility among some models within this product line, hence deliberately buying from Amazon for easy return if needed..I got lucky, all mine worked together just fine.Fit and finish was similar to the smokes, but agree with other reviews that the sticker on CO back is perplexingly oversized, disagree that it holds the unit securely into the base for ceiling mount, as we found the mounting lugs engaged the mounting ring solidly on their own. Personally, I think it was because the stickers were cut slightly larger than the backside of the detector, maybe they used same size circle decal as for their smokes, guess we'll never know...When first installed, it triggered all the other hardwired alarms to go off every several seconds, but unplugging this unit, removing battery, letting it power down completely and then plugging it in before installing battery seems to be the secret handshake for adding a CO-only to their alarm loop. Pressing the test button for a few seconds to reset the capture light finalized the installation process. Haven't had any false CO triggers since.My biggest ding for this product? The same ding as published marketing for the other First Alert detectors: they say it can be installed with XX number of compatible units, but never give any information about which units are actually compatible with which. Why would a company brag about how many can be used, while making it hard for a customer to know which of the several alarm products sold under the First Alert name are or are not compatible with each other??? Based on reviews, some of FA's own hardwired alarms don't play well with others in the product line :( I say an update is needed on their website, at a minimum, to give the customer ease of mind by FA being upfront in compatibility, rather than leaving the customer questioning incompatibility when deciding which units to buy.
J. Spiegel
Reviewed in the United States on September 14, 2008
I recently read that 10 years is about the life of a smoke detector. I just passed my tenth anniversary in my home that I remodeled. So time for a redo of all my hard Wired detectors. They were by BRK so it was easy to get these and replace them. I replaced the old yellowing base mounts so now they're all white and clean. I changed out one smoke detector with this CO detector as it was 6 feet from another smoke detector. Plug 'n Play. It was an easy switch out and they all worked well. The old ones worked great for ten years. I hope they never really have to do their job, but I feel like they will just fine. I test them periodically.
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