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First Alert BRK SC9120FF front view with ready-to-install protection for home safety.
First Alert BRK SC9120FF installation setup image enabling easy wiring and testing.
First Alert BRK SC9120FF indicator lights demonstrate smoke or CO status for quick at-a-glance safety awareness.
First Alert BRK SC9120FF battery backup ensures monitoring during power outages.
First Alert BRK SC9120FF front view with ready-to-install protection for home safety.
First Alert BRK SC9120FF installation setup image enabling easy wiring and testing.
First Alert BRK SC9120FF indicator lights demonstrate smoke or CO status for quick at-a-glance safety awareness.
First Alert BRK SC9120FF battery backup ensures monitoring during power outages.

FIRST ALERT BRK SC9120FF Hardwired Smoke & CO Detector with Battery Backup – 1 Pack

Two hazards, one reliable detector The FIRST ALERT BRK SC9120FF merges smoke and carbon monoxide detection in a single, compact...
Vendor: First Alert
$158.55
$158.55
Please hurry! Only 5 left in stock
Subtotal: $158.55
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First Alert BRK SC9120FF front view with ready-to-install protection for home safety.

FIRST ALERT BRK SC9120FF Hardwired Smoke & CO Detector with Battery Backup – 1 Pack

$158.55
First Alert BRK SC9120FF front view with ready-to-install protection for home safety.
First Alert BRK SC9120FF installation setup image enabling easy wiring and testing.
First Alert BRK SC9120FF indicator lights demonstrate smoke or CO status for quick at-a-glance safety awareness.
First Alert BRK SC9120FF battery backup ensures monitoring during power outages.

FIRST ALERT BRK SC9120FF Hardwired Smoke & CO Detector with Battery Backup – 1 Pack

$158.55
Description
Description
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Two hazards, one reliable detector

The FIRST ALERT BRK SC9120FF merges smoke and carbon monoxide detection in a single, compact unit designed for modern homes. It uses a quick plug-in power connector and 120V interconnection, so you can extend coverage across rooms with compatible devices. A 9-volt battery backup keeps monitoring active during power outages, offering continued protection when the lights go out.

Real-world use feels straightforward: install in hallways or near bedrooms, connect to nearby alarms, and rely on a clear 85 dB siren and visible status lights to signal what needs attention. The device balances a practical, easy-to-understand interface with reliable sensors that respond to smoke and CO conditions without complicated steps.

Key features at a glance

  • Hardwired operation with battery backup for constant monitoring
  • Electrochemical CO sensing combined with a sensitive smoke sensor
  • Indicator lights and a loud siren provide fast, at-a-glance alerts
  • Interconnects with up to 18 compatible devices to synchronize alarms
  • Single test/silence button, tamper-resistant mounting, and a locking battery drawer
  • UL Safety Standard 2034 listed with a 10 year limited warranty

Installation and everyday use

  • Easy installation with a plug-in power connector and universal mounting brackets
  • Self-tests occur automatically to verify functionality without manual checks
  • Chirp alerts or indicator lights alert you to low battery or test status
  • Battery backup protects you during power outages, keeping you informed

FAQ

Q: What hazards does the BRK SC9120FF detect?

A: It detects smoke and carbon monoxide and includes a battery backup for continuous monitoring, even if power is out.

Q: Can this detector interconnect with other alarms?

A: Yes, it interconnects with compatible BRK/First Alert devices so all alarms sound together when danger is detected.

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Shipping & Return
Shipping & Return
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Shipping (Canada)

We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.

We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.

Returns (30 Days)

We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.

To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.

Refunds

Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.

Order Tracking

When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.

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