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FIRST ALERT BRK SC9120B-3 Hardwired Smoke and
27th Aug 2026, 06:25 PM

FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3

Price may vary by location, shipping cost, and availability.
Lowest ever
$152.90

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Highest: $152.90
Average: $152.90
Lowest: $152.90

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You can check the price history of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3 here. This product's current Price in USA is $152.90. The average and highest prices are $152.90 and $152.90 respectively.

Lowest Ever Price $152.90
27th Aug 2026
Average Price $152.90
Based on 2 days price tracking
Highest Price $152.90
27th Aug 2026

Price History of All Variants of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and...

FIRST ALERT BRK SC9120B-3 Hardwired Smoke and
Offer Price: $152.90

FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3

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Current Price in USA

Price $152.90

Product Information

Details

Product Name FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Store Product Code B07B4C7MQ6
Store Name amazon.com
Brand First Alert
Rating 9.4 / 10
Category Combination Smoke & Carbon Monoxide Detectors
Product Manufacturer First Alert
Model Number SC9120B-3
Color White
Dimensions 1.9"D x 5.6"W x 5.6"H

Features

  • Keep your family safe with this 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Simple to use, with a single test/silence button, and side-load battery compartment; Tamper-resistant locking brackets and universal mounting brackets make installation easy. Dust cover

Images

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Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Image of FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3

Rating and Reviews

9.4 Based on 4734 reviews

FIRST ALERT BRK SC9120B-3 Hardwired Smoke and has 9.4 rating out of 10. This average rating is consist of 4734 individual ratings. You can rate this product at product review page.

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