First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

Name: First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack
SKU: 63254
Price: 106.98 USD
Availability: InStock

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Home Safety & Emergency

$106.98

Tags: Alarm, Alert, Backup, Battery, Carbon, Hardwired, Monoxide, Pack, SC9120B, Smoke

$106.98

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Description
Reviews (8)

The First Alert BRK SC-9120B Hardwired Combination Smoke and Carbon Monoxide Alarm uses electrochemical CO sensing technology and Ionization sensor for smoke detection. This hardwired dual CO smoke alarm can be connected to other compatible BRK or First Alert hardwired CO smoke detectors within a single-family residence.
Hardwired CO smoke alarm features battery backup for constant monitoring
Can connect to other compatible BRK or First Alert CO smoke detectors
Lights indicate if the alarm is for smoke or for carbon monoxide
Single test silence button for simple operation
Side-load battery compartment for convenience

8 reviews for First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

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Pawn Pace – July 12, 2026

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First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

Description
Reviews (8)

$106.98

Buy on Amazon

First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

8 reviews for First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

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First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

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8 reviews for First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack

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