Best First Alert Fire Alarms
Updated February 2026
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Best First Alert Fire Alarms
2026 Buyer's GuideUpdated February 2026
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1
1
First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
Smoke detector quality
Ease of installation
Value for money
2
6
6
First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
FIRST ALERT
Ease of installation
Functionality
Replacement value
Value for money
Compatibility
Resale value
6
First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack
Ease of installation
Functionality
Replacement value
Value for money
Compatibility
Resale value
8
9
9
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Wiring
9
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
Ease of installation
Functionality
Smoke detector quality
Value for money
Replacement value
Wiring
Our Top Choice
1
1
First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
Smoke detector quality
Ease of installation
Value for money
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