Menu
Search
Advertising Disclosure

10 Best first alert smoke detectors of 2026

Save up to 35% off
  • Best Choice

    1

    First Alert Battery Smoke Alarm
    First Alert
    9.9
    Exceptional

    First Alert Battery Smoke Alarm

    • product dimensions: 5.4D x 5.4W x 1.9H
    • color: White
    • pattern: SMI100
    • item weight: 11.2 ounces
    • upc: 029054022387
  • Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
    Careful review Our team ensures quality, value, and fit based on real user feedback
    Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
    Real users impact
    • Thousands of users trust our site daily
    • Based on millions of stores and reviews
    • Shoppers influence our rankings
  • Value for Money

    2

    First Alert Hardwire Smoke Alarm
    First Alert
    9.7
    Exceptional

    First Alert Hardwire Smoke Alarm

  • 3

    First Alert 10-Year Battery Smoke Alarm Slim Profile
    First Alert
    9.6
    Exceptional

    First Alert 10-Year Battery Smoke Alarm Slim Profile

    14% Off
    • product dimensions: 5.13D x 5.13W x 1H
    • color: White
    • pattern: SM210
    • item weight: 5.9 ounces
    • upc: 029054021847

  • 4

    First Alert Hardwire Smoke Alarm
    First Alert
    9.4
    Excellent

    First Alert Hardwire Smoke Alarm

    35% Off
    • product dimensions:‎5.6"D x 5.6"W x 1"H
    • color:‎White
    • pattern:‎SMI100-AC
    • item weight:‎9.6 ounces
    • upc:‎029054022462

  • 5

    First Alert Battery Smoke Alarm
    First Alert
    9.3
    Excellent

    First Alert Battery Smoke Alarm

    14% Off
    • product dimensions: 5.6 x 5.6 x 1.9 inches
    • color: White
    • pattern: SMI100
    • item weight: 9.6 ounces
    • upc: 029054022400
  • See Today’s Deals & Prices

  • 6

    First Alert Battery Smoke Alarm
    First Alert
    9.2
    Excellent

    First Alert Battery Smoke Alarm

    • product dimensions:‎5.6 x 5.6 x 1.9 inches
    • color:‎White
    • pattern:‎SMI100
    • item weight:‎9.6 ounces
    • upc:‎029054022417

  • 7

    FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
    First Alert
    9.0
    Excellent

    FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement

    • color: Red
    • pattern: Alarm
    • batteries included: Yes
    • item model number: SC9120B
    • best sellers rank: 24,384 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 51 in Smoke & Carbon Monoxide Alarms

  • 8

    BRK SC9120B Smoke and Carbon Monoxide Alarm
    BRK
    8.8
    Very Good

    BRK SC9120B Smoke and Carbon Monoxide Alarm

  • 9

    First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
    First Alert
    8.7
    Very Good

    First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack

    • product dimensions: 2.2D x 5.6W x 5.6H
    • color: White
    • pattern:N/A
    • item weight: 9.6 ounces
    • upc: 029054019387 029054019226

  • 10

    First Alert 10-Year Battery Smoke Alarm
    First Alert
    8.6
    Very Good

    First Alert 10-Year Battery Smoke Alarm

    • product dimensions:‎5.6"D x 5.6"W x 2"H
    • color:‎White
    • pattern:‎SMI110
    • item weight:‎10.9 ounces
    • upc:‎029054022929