Where to Buy-First-Alert-Smoke-Detectors Search Shopping

Top Expert-Recommended First Alert Smoke Detectors for Home Safety

We’ve compiled the most trusted First Alert smoke detectors from expert reviews, highlighting models with advanced sensing, long battery life, smart features, and reliable alerts to help protect your home and family.

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Best sealed battery option

First Alert SM210 10-Year Sealed Battery Smoke Alarm with Slim Profile

Best sealed battery option

First Alert SM210 10-Year Sealed Battery Smoke Alarm with Slim Profile

10-year sealed battery smoke alarm with easy installation and compliance with NFPA and UL standards.

Best voice alarm

First Alert SMCO210V 10-Year Battery Smoke and Carbon Monoxide Detector

First Alert SMCO210V 10-Year Battery Smoke and Carbon Monoxide Detector

Best voice alarm

First Alert SMCO210V 10-Year Battery Smoke and Carbon Monoxide Detector

First Alert SMCO210V 10-Year Battery Smoke and Carbon Monoxide Detector

Smoke and CO alarm with voice alerts, combining electrochemical and photoelectric sensors for accurate detection.

First Alert SMI100-AC Smoke Detector & Alarm with Battery Backup

First Alert SMI100-AC Smoke Detector & Alarm with Battery Backup

First Alert SMI100-AC Smoke Detector & Alarm with Battery Backup

First Alert SMI100-AC Smoke Detector & Alarm with Battery Backup

Budget-friendly hardwired smoke detector with battery backup, offering reliable ionization sensing for basic home protection.

Best bang for the buck

First Alert SMI100 Battery-Operated Smoke Alarm

First Alert SMI100 Battery-Operated Smoke Alarm

Best bang for the buck

First Alert SMI100 Battery-Operated Smoke Alarm

First Alert SMI100 Battery-Operated Smoke Alarm

Battery-operated smoke alarm with Precision Detection technology for reliable ionization sensing.

First Alert SMCO500V Wireless Interconnected Smoke and Carbon Monoxide Alarm

First Alert SMCO500V Wireless Interconnected Smoke and Carbon Monoxide Alarm

First Alert SMCO500V Wireless Interconnected Smoke and Carbon Monoxide Alarm

First Alert SMCO500V Wireless Interconnected Smoke and Carbon Monoxide Alarm

Battery-operated smoke and CO detector with photoelectric sensing, ideal for non-hardwired installations.

Best portable dual detector

First Alert SMCO100 Battery-Operated Smoke and Carbon Monoxide Alarm

First Alert SMCO100 Battery-Operated Smoke and Carbon Monoxide Alarm

Best portable dual detector

First Alert SMCO100 Battery-Operated Smoke and Carbon Monoxide Alarm

First Alert SMCO100 Battery-Operated Smoke and Carbon Monoxide Alarm

Battery-operated smoke and CO alarm with Precision Detection to reduce false alarms from cooking.

Best for reducing false alarms

First Alert SMI110 10-Year Sealed Battery Ionization Smoke Alarm

First Alert SMI110 10-Year Sealed Battery Ionization Smoke Alarm

Best for reducing false alarms

First Alert SMI110 10-Year Sealed Battery Ionization Smoke Alarm

First Alert SMI110 10-Year Sealed Battery Ionization Smoke Alarm

Features a 10-year sealed battery and Precision Detection technology to minimize cooking-related false alarms.

Best smoke and carbon monoxide detector

First Alert SM100V-AC Hardwired Photoelectric Smoke Detector with Voice Alert and Battery Backup

First Alert SM100V-AC Hardwired Photoelectric Smoke Detector with Voice Alert and Battery Backup

Best smoke and carbon monoxide detector

First Alert SM100V-AC Hardwired Photoelectric Smoke Detector with Voice Alert and Battery Backup

First Alert SM100V-AC Hardwired Photoelectric Smoke Detector with Voice Alert and Battery Backup

Combines smoke and carbon monoxide detection with clear voice alerts and interconnect capability for enhanced safety.

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First Alert Brk 9120B Hardwired Smoke Alarm With Battery Backup

First Alert Brk 9120B Hardwired Smoke Alarm With Battery Backup

Smoke Home & Garden

First Alert Brk 9120B Hardwired Smoke Alarm With Battery Backup

First Alert Brk 9120B Hardwired Smoke Alarm With Battery Backup

Smoke Home & Garden

First Alert Smoke Alarm Hard-Wired Long-Life Battery Back-Up 1042735 New Sealed

First Alert Smoke Alarm Hard-Wired Long-Life Battery Back-Up 1042735 New Sealed

First Alert Smoke Alarm Hard-Wired Long-Life Battery Back-Up 1042735 New Sealed

First Alert Smoke Alarm Hard-Wired Long-Life Battery Back-Up 1042735 New Sealed

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

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First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

First Alert Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert Smoke Alarm New In Package

First Alert Smoke Alarm New In Package

First Alert Smoke Alarm New In Package

First Alert Smoke Alarm New In Package

First Alert Smoke Detector Alarm Slim Profile Design 10-Year Battery NEW SEALED

First Alert Smoke Detector Alarm Slim Profile Design 10-Year Battery NEW SEALED

First Alert Smoke Alarm New

First Alert Smoke Alarm New

First Alert Smoke Alarm New

First Alert Smoke Alarm New

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Interconnect Hardwire Smoke & CO Alarm With 10-Year Battery Backup | By Fleet Farm

First Alert Battery-Operated Smoke Alarm With Slim Profile, 8-1/2"L X 6-3/4"W X 2-1/2"H, White

First Alert Battery-Operated Smoke Alarm With Slim Profile, 8-1/2"L X 6-3/4"W X 2-1/2"H, White

First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1

First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1

Bed Bath & Beyond

First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1

First Alert Wireless Interconnect Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1

Bed Bath & Beyond

FIRST ALERT 1046719 Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

FIRST ALERT 1046719 Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

FIRST ALERT 1046719 Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

FIRST ALERT 1046719 Voice Alert Hard-Wired Photoelectric Smoke Detector 1 Pk

First Alert Smoke Alarm Battery Operated White New. First Alert. White. Smoke & Gas Detectors.

First Alert Smoke Alarm Battery Operated White New. First Alert. White. Smoke & Gas Detectors.

First Alert Smoke Alarm Battery Operated White New. First Alert. White. Smoke & Gas Detectors.

First Alert Smoke Alarm Battery Operated White New. First Alert. White. Smoke & Gas Detectors.

First Alert Photoelectric Smoke Alarm

First Alert Photoelectric Smoke Alarm

First Alert Photoelectric Smoke Alarm

First Alert Photoelectric Smoke Alarm

New First Alert Battery Powered Smoke Alarm Detector W/ 9V Battery Sealed. First Alert. White. Smoke & Gas Detectors. 029054018878.

New First Alert Battery Powered Smoke Alarm Detector W/ 9V Battery Sealed. First Alert. White. Smoke & Gas Detectors. 029054018878.

New First Alert Battery Powered Smoke Alarm Detector W/ 9V Battery Sealed. First Alert. White. Smoke & Gas Detectors. 029054018878.

New First Alert Battery Powered Smoke Alarm Detector W/ 9V Battery Sealed. First Alert. White. Smoke & Gas Detectors. 029054018878.

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm

First Alert 1039852, Battery Photoelectric Sensor Smoke Alarm

Smoke & CO Combo Units

Combination units that detect both smoke and carbon monoxide, offering dual protection in a single device.

Long-Life Battery Models

Smoke detectors equipped with sealed lithium batteries designed to last up to 10 years without replacement.

Smart Connected Detectors

Wi-Fi enabled smoke detectors that send alerts to smartphones and integrate with smart home systems.

Voice Alert Models

Detectors that use voice alerts to indicate the type and location of danger.

Photoelectric Sensor Units

Smoke detectors using photoelectric sensors to detect smoldering fires more effectively.

Wireless Interconnect Systems

Detectors that communicate wirelessly so when one alarm sounds, all connected units sound.

All products

First Alert Sealed 10-Year-Battery 2-In-1 Smoke And CO Alarm With Slim Profile, 6-3/4"L X 8-1/2"W X 1-1/2"H, White

First Alert Sealed 10-Year-Battery 2-In-1 Smoke And CO Alarm With Slim Profile, 6-3/4"L X 8-1/2"W X 1-1/2"H, White

First Alert Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

Shell Lumber and Hardware Co

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

First Alert 1046827 Smoke Alarm, Ionization Sensor, White

Shell Lumber and Hardware Co

First Alert 10 Year Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert 10 Year Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Slim Battery-Powered Photoelectric Smoke Detector 1 Pk

Bed Bath & Beyond

First Alert Smoke Alarm

First Alert Smoke Alarm

First Alert Smoke Alarm

First Alert Smoke Alarm

First Alert Smoke Detector - White

First Alert Smoke Detector - White

First Alert Smoke Detector - White

First Alert Smoke Detector - White

First Alert Sm210l Sealed 10-Year-Battery Smoke Alarm With Safety Path Light And Slim Profile, 1046747

First Alert Sm210l Sealed 10-Year-Battery Smoke Alarm With Safety Path Light And Slim Profile, 1046747

First Alert Slim Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1 Each

First Alert Slim Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1 Each

Bed Bath & Beyond

First Alert Slim Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1 Each

First Alert Slim Battery-Powered Photoelectric Smoke And Carbon Monoxide Detector 1 Each

Bed Bath & Beyond

NEW First Alert Smoke Alarm Hardwire Adapter Included -1039809. First Alert. White. Smoke & Gas Detectors.

NEW First Alert Smoke Alarm Hardwire Adapter Included -1039809. First Alert. White. Smoke & Gas Detectors.

NEW First Alert Smoke Alarm Hardwire Adapter Included -1039809. First Alert. White. Smoke & Gas Detectors.

NEW First Alert Smoke Alarm Hardwire Adapter Included -1039809. First Alert. White. Smoke & Gas Detectors.

First Alert Battery Powered Photoelectric Smoke Alarm (FAT1046727)

First Alert Battery Powered Photoelectric Smoke Alarm (FAT1046727)

First Alert Battery Powered Photoelectric Smoke Alarm (FAT1046727)

First Alert Battery Powered Photoelectric Smoke Alarm (FAT1046727)

First Alert Interconnect Ionization Smoke Detector

First Alert Interconnect Ionization Smoke Detector

Bed Bath & Beyond

First Alert Interconnect Ionization Smoke Detector

First Alert Interconnect Ionization Smoke Detector

Bed Bath & Beyond

First Alert Dual Sensor Smoke Alarm With 10-Year Sealed Battery, 1 Pk

First Alert Dual Sensor Smoke Alarm With 10-Year Sealed Battery, 1 Pk

First Alert Dual Sensor Smoke Alarm With 10-Year Sealed Battery, 1 Pk

First Alert Dual Sensor Smoke Alarm With 10-Year Sealed Battery, 1 Pk

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert Wall Mounted Smoke Detector First Alert

First Alert Wall Mounted Smoke Detector First Alert

First Alert Wall Mounted Smoke Detector First Alert

First Alert Wall Mounted Smoke Detector First Alert

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert BRK 10-Year Battery Ionization Smoke Alarm | By Fleet Farm

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm With Battery Backup & Voice Alerts, 1-Pack

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert 10 Year Voice And Location Battery-Powered Photoelectric Smoke Detector 1 Pk

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert BRK Hardwired Ionization Smoke Alarm With Battery Backup | By Fleet Farm

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm With Battery Backup

First Alert Slim Battery-Powered Photoelectric Smoke Detector

First Alert Slim Battery-Powered Photoelectric Smoke Detector

First Alert Slim Battery-Powered Photoelectric Smoke Detector

First Alert Slim Battery-Powered Photoelectric Smoke Detector

First Alert™ Battery Operated 9V Photoelectric Slim Round Smoke Alarm

First Alert™ Battery Operated 9V Photoelectric Slim Round Smoke Alarm

First Alert™ Battery Operated 9V Photoelectric Slim Round Smoke Alarm

First Alert™ Battery Operated 9V Photoelectric Slim Round Smoke Alarm

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