At a Glance
Hardwired
Alarm Sensor Type: Photoelectric
Interconnection
Battery Back-Up

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Is it easy to install?Will this work during power outages?How do I silence the alarm?Does this interconnect with other alarms?What is the warranty period?

First Alert BRK Hardwired (with Battery Backup) Photoelectric Interconnected Combination Smoke and Carbon Monoxide Detector with Voice Alert

Name: First Alert BRK Hardwired (with Battery Backup) Photoelectric Interconnected Combination Smoke and Carbon Monoxide Detector with Voice Alert
Brand: First Alert
SKU: 5014520177
Price: 69.98 USD
Availability: InStock
Rating: 4.1 (130 reviews)

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4.1

130

Stepper number input field with increment and decrement buttons

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120V AC/DC Interconnectable Smoke & CO Alarm w/Replaceable Battery Backup & Voice Warning w/Location

Precision Detection technology helps reduce cooking nuisance alarms and provides early warning.
Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning
Battery backup provides continuous protection during power outages
Perfect mount bracket keeps the alarm secure over a wide rotation range for ideal alignment and easy installation
Latching Alarm Indicator visually identifies the unit that initiated the alarm or low battery warning
Test/Silence button allows for efficient testing and temporarily silences alarm for up to 8 hours

General
Color/Finish Family	White	Package Quantity	1
Series Name	SMCO100V-AC	Battery Type	AA
Sub-Brand	BRK	Alarm Sensor Type	Photoelectric
Power Source	Hardwired

Dimensions
Height (Inches)	2.4	Width (Inches)	5.1
Length (Inches)	5.1

Features
10-Year Battery	No	Light	No
Battery Back-Up	Yes	Natural Gas Detector	No
Battery Included	Yes	Peak Level Alert	Yes
Front-Load Battery	No	Voice Alert	Yes
Hush Feature	Yes	Voice Assistant	No
Interconnection	Yes	Voltage	120

Compatibility
App Compatibility	No	Works with Amazon Alexa	No
Bluetooth Compatibility	No	Works with Android	No
Smart Compatible	No	Works with Apple HomeKit	No
Wi-Fi Compatibility	No	Works with iOS	No

Warranty
Warranty	10-year limited

Certifications
CA Residents: Prop 65 Warning(s)	No	Safety Listing	ETL safety listing

Miscellaneous
UNSPSC	46191500

Check out the Best Selling Combination Smoke & Carbon Monoxide Detectors on Lowes.com

Review

4.1 out of 5

130 Reviews

73% Recommend this product

Ratings may include incentivized customer reviews.

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What Customers Are Saying

The product offers helpful safety features like easy installation, voice alerts, and effective smoke and carbon monoxide detection. However, many users reported frequent false alarms, even with proper setup, which disrupted their daily lives. The reliability and consistency of the alarms were major concerns for a significant number of customers.

Customer review summary generated by AI, including incentivized reviews.

130 Customer Reviews

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Reliable and don’t act up like kidde models

Easy install

GarrettApril 23, 2026
Verified Purchaser

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Would Not Recommend

Product Manufacturer Date on unit is 2024 June 13. Fire alarm that is almost 2 years old when received.

BMANApril 19, 2026
Verified Purchaser

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Response from FirstAlertProductExpert

Hi BMAN, thanks for reaching out. The warranty for your detector starts from the date it was purchased, not when it was manufactured. If you ever nee...

FirstAlertProductExpertApril 19, 2026

FirstAlert

Reliable

More up to date than my last one

April 16, 2026
Verified Purchaser

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Works as expected

Would Recommend

Works as expected

BlakeApril 16, 2026
Verified Purchaser

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15 Questions

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First Alert BRK Hardwired (with Battery Backup) Photoelectric Interconnected Combination Smoke and Carbon Monoxide Detector with Voice Alert

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