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Overview

The First Alert SC9120LBLA hardwired smoke and carbon monoxide alarm provides 120V AC installation with a 10-year sealed battery backup. It features an ionization smoke sensor, electrochemical carbon monoxide sensor, and interconnect support with compatible First Alert or BRK alarms. Outer packaging may vary for open box items.
Open Box

Open Box - First Alert SC9120LBLA Hardwired Smoke and Carbon Monoxide Alarm, 120V AC, 10-Year Sealed Battery Backup, Ionization Smoke Sensor, Electrochemical CO Sensor

Model: SC9120LBLA
Web Code: 19870324
Sold and shipped by | 4.3 seller rating (357 reviews)

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Available for deliveryAvailable online only

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Seller Return Policy

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

First Alert SC9120LBLA smoke and carbon monoxide alarm is designed for home safety, residential protection, apartments, condos, rental units, and hardwired alarm systems.

2-in-1 smoke and carbon monoxide detector combines smoke detection and CO detection in one convenient hardwired alarm unit.

120V hardwired alarm connects directly into your home’s electrical system for reliable powered operation when properly installed.

10-year sealed battery backup provides added protection during power outages without needing regular battery replacement.

Ionization smoke sensor is designed to detect particles commonly produced by fast-flaming fires.

Electrochemical carbon monoxide sensor helps accurately detect carbon monoxide levels for added household safety.

Interconnect compatible design can integrate with up to 12 compatible First Alert or BRK hardwired smoke alarms, helping alerts sound throughout connected areas.

Hardwired smoke CO alarm is suitable for replacement projects, home upgrades, safety maintenance, and compatible alarm system installations.

Open Box smoke alarm includes the essential product features while offering value for customers looking for a First Alert hardwired smoke and carbon monoxide detector.

Packaging note: Outer packaging may vary or be different for open box items.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

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Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

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Product Category
Smart home products
Return/Exchange Period
30 days
Condition
Opened

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