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10 Best first alert brk sc9120bs of 2026

Save up to 33% off
  • Best Choice

    1

    10 Pack First Alert SC9120B BRK Hardwire Smoke/Carbon Monoxide Combo Alarm with Battery Backup
    BRK Brands
    9.8
    Exceptional

    10 Pack First Alert SC9120B BRK Hardwire Smoke/Carbon Monoxide Combo Alarm with Battery Backup

    18% Off
    • item weight: 1 pounds
    • upc: 029054513069
    • batteries included: No
    • item model number: SC9120B
    • best sellers rank: 327,825 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 141 in Smoke & Carbon Monoxide Alarms
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  • Value for Money

    2

    First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup. 6-Pack , White
    First Alert
    9.6
    Exceptional

    First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup. 6-Pack , White

    33% Off

  • 3

    First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup
    First Alert
    9.4
    Excellent

    First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

    • item weight: 10.4 ounces
    • upc:N/A
    • batteries included: No
    • item model number: SC9120B
    • best sellers rank: 1,778 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 4 in Smoke & Carbon Monoxide Alarms

  • 4

    FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
    First Alert
    9.3
    Excellent

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

    29% Off
    • item weight: 11.2 ounces
    • upc:N/A
    • batteries included: Yes
    • item model number: SC9120B-3
    • best sellers rank: 249 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 1 in Smoke & Carbon Monoxide Alarms

  • 5

    First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack
    First Alert
    9.2
    Excellent

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

    • color: 2 Units Sc-9120b
    • batteries: 1 9V batteries required.
    • item weight: 1.34 pounds
    • upc: 716123248617
    • batteries included: No
  • See Today’s Deals & Prices

  • 6

    BRK SC9120B Smoke and Carbon Monoxide Alarm
    BRK
    9.0
    Excellent

    BRK SC9120B Smoke and Carbon Monoxide Alarm

  • 7

    First Alert BRK SC-9120B xrHsEW Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup, 4 Units
    First Alert
    8.8
    Very Good

    First Alert BRK SC-9120B xrHsEW Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup, 4 Units

    • item weight:N/A
    • upc:N/A
    • batteries included: No
    • item model number:N/A
    • best sellers rank: 254,527 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 128 in Smoke & Carbon Monoxide Alarms

  • 8

    First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack
    First Alert
    8.5
    Good

    First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack

    • color: 5 Units 9120B
    • batteries:N/A
    • item weight: 0.01 ounces
    • upc: 029054246691
    • batteries included: No

  • 9

    First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, SMCO600NV-AC, 1-Pack
    First Alert
    8.4
    Good

    First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, SMCO600NV-AC, 1-Pack

    14% Off

  • 10

    First Alert 9120B / SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 10-Pack
    BRK
    8.3
    Good

    First Alert 9120B / SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 10-Pack

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