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10 bestFirst Alert Smoke Detectorsof November 2025

112M consumers helped this year.

1

First Alert CO600 Plug-in Carbon Monoxide Detector

First Alert CO600 Plug-in Carbon Monoxide Detector

First Alert CO600 Plug-in Carbon Monoxide Detector

First Alert

10.0

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2

Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

Carbon Monoxide Detector ,CO Gas Monitor Alarm Detector Complies with UL 2034 Standards ,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

FDUIOSPF

10.0

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3

First Alert Sc9120Bff Brk Sc-9120B Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup

First Alert Sc9120Bff Brk Sc-9120B Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup

First Alert Sc9120Bff Brk Sc-9120B Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup

First Alert

10.0

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4

First Alert 0827B 10-Year Tamper Resistant Smoke Alarm, White

First Alert 0827B 10-Year Tamper Resistant Smoke Alarm, White

First Alert 0827B 10-Year Tamper Resistant Smoke Alarm, White

First Alert

9.9

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5

First Alert CO400 Battery Powered Carbon Monoxide Alarm

First Alert CO400 Battery Powered Carbon Monoxide Alarm

First Alert CO400 Battery Powered Carbon Monoxide Alarm

First Alert

9.8

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6

R RANSENERS Metal Detector Wand,Security Wand,Portable Adjustable Sound&Vibration Alerts,Detects Weapons Knivers Screw(High Sensitivity,Black)Â…

R RANSENERS Metal Detector Wand,Security Wand,Portable Adjustable Sound&Vibration Alerts,Detects Weapons Knivers Screw(High Sensitivity,Black)Â…

R RANSENERS Metal Detector Wand,Security Wand,Portable Adjustable Sound&Vibration Alerts,Detects Weapons Knivers Screw(High Sensitivity,Black)Â…

R RANSENERS

9.7

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7

Ecoey Smoke Detector Fire Alarm with Photoelectric Technology, Fire Detector with Test Button and Low Battery Signal, Fire Alarm for Bedroom and Home, FJ136GB, 1 Pack Small

Ecoey Smoke Detector Fire Alarm with Photoelectric Technology, Fire Detector with Test Button and Low Battery Signal, Fire Alarm for Bedroom and Home, FJ136GB, 1 Pack Small

Ecoey Smoke Detector Fire Alarm with Photoelectric Technology, Fire Detector with Test Button and Low Battery Signal, Fire Alarm for Bedroom and Home, FJ136GB, 1 Pack Small

Ecoey

9.5

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8

Carbon Monoxide Detector,CO Monitor Alarm Detector Battery Powered,CO Detector with LCD Digital Display and Sound Warning for Home,Office,School,Basement,Garage,Complies with UL 2034 Standards

Carbon Monoxide Detector,CO Monitor Alarm Detector Battery Powered,CO Detector with LCD Digital Display and Sound Warning for Home,Office,School,Basement,Garage,Complies with UL 2034 Standards

Carbon Monoxide Detector,CO Monitor Alarm Detector Battery Powered,CO Detector with LCD Digital Display and Sound Warning for Home,Office,School,Basement,Garage,Complies with UL 2034 Standards

Sylzy

9.3

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9

Kidde | Model i9040 Battery-Operated Compact Smoke Detector Alarm

Kidde | Model i9040 Battery-Operated Compact Smoke Detector Alarm

Kidde | Model i9040 Battery-Operated Compact Smoke Detector Alarm

Kidde

9.1

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10

System Sensor Smoke Detector 2351e

System Sensor Smoke Detector 2351e

System Sensor Smoke Detector 2351e

System Sensor

8.9

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