Ignitions and Electrical› Charging Systems

BRK

HARDWIRED CO ALARM WITH REPLACEABLE

$39.36

SKU: B01T CO5120BN

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

HARDWIRED CO ALARM WITH REPLACEABLE

MIA's Description

The BRK CO5120BN is a hardwired carbon monoxide alarm with battery backup. It features an electrochemical sensor for accurate CO detection and a quick plug-in power connector for easy installation. This alarm is designed to connect directly into your building's wiring and includes a 9V alkaline battery for backup during power outages.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBRK
Part NumberB01T CO5120BN

Videos

How to Install Hard Wired Smoke Detector - Easy Installation First Alert Smoke Detector Model 9120B

How to Install Hard Wired Smoke Detector - Easy Installation First Alert Smoke Detector Model 9120B
Hardwired Carbon Monoxide Alarm with Battery Backup CO5120BN

Hardwired Carbon Monoxide Alarm with Battery Backup CO5120BN
First Alert Hardwired Combo Smoke and CO Alarm with 10 Year Sealed Battery (SC9120LBL)

First Alert Hardwired Combo Smoke and CO Alarm with 10 Year Sealed Battery (SC9120LBL)
First Alert BRK Smoke & Fire Detector - How To Change 9 Volt Backup Battery (Positive & Negative)

First Alert BRK Smoke & Fire Detector - How To Change 9 Volt Backup Battery (Positive & Negative)
Change Smoke Alarm Battery- First Alert

Change Smoke Alarm Battery- First Alert
First Alert Hardwired Carbon Monoxide Alarm with Battery Backup (CO5120BN)

First Alert Hardwired Carbon Monoxide Alarm with Battery Backup (CO5120BN)
First Alert SCO1N Smoke/CO Alarm Test

First Alert SCO1N Smoke/CO Alarm Test
How to Replace a Smoke Detector - Install First Alert Smoke Detector the Easy Way Without Rewiring

How to Replace a Smoke Detector - Install First Alert Smoke Detector the Easy Way Without Rewiring
Review of First Alert BRK SC9120B Hardwire Combination Smoke and Carbon Monoxide Alarm

Review of First Alert BRK SC9120B Hardwire Combination Smoke and Carbon Monoxide Alarm

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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