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10 Best smoke detectors of 2026

Save up to 20% off
  • Best Choice

    1

    First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack
    First Alert
    Available in: 4 sizes
    9.9
    Exceptional

    First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack

    • product dimensions: 5.6D x 5.6W x 1.9H
    • color: White
    • batteries: 1 9V batteries required. included
    • pattern: 2nd Generation
    • item weight: 3.33 pounds
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  • Value for Money

    2

    FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
    First Alert
    Available in: 4 sizes
    9.8
    Exceptional

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

    • product dimensions: 1.9D x 5.6W x 5.6H
    • color: White
    • batteries: 2 AA batteries required. included
    • pattern: Detector
    • item weight: 11.2 ounces

  • 3

    First Alert SMI100, Battery-Operated Smoke Alarm, 3-Pack
    First Alert
    Available in: 2 sizes
    9.7
    Exceptional

    First Alert SMI100, Battery-Operated Smoke Alarm, 3-Pack

    • product dimensions:‎5.6 x 5.6 x 1.9 inches
    • color:‎White
    • batteries:‎1 9V batteries required. (included)
    • item weight:‎9.6 ounces
    • pattern:‎SMI100

  • 4

    First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
    First Alert
    9.6
    Exceptional

    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
    • batteries: 1 9V batteries required. included
    • item weight: 9.6 ounces
    • pattern:N/A

  • 5

    First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack
    First Alert
    Available in: 3 sizes
    9.3
    Excellent

    First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack

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  • 6

    SITERWELL Smoke Detector, Smoke Detector 10 Year Battery with Photoelectric Sensor, Fire Alarm with Low Battery and Fault Warning for House and Bedroom, UL217 Listed, GS525A (4 Packs)
    SITERWELL
    9.2
    Excellent

    SITERWELL Smoke Detector, Smoke Detector 10 Year Battery with Photoelectric Sensor, Fire Alarm with Low Battery and Fault Warning for House and Bedroom, UL217 Listed, GS525A (4 Packs)

  • 7

    First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack
    First Alert
    Available in: 4 sizes
    9.1
    Excellent

    First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack

    • product dimensions:‎21.5 x 7.5 x 3.5 inches
    • color:‎White
    • batteries:‎1 9V batteries required. (included)
    • pattern:‎SMICO100-AC
    • item weight:‎1.68 pounds

  • 8

    First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack
    First Alert
    9.0
    Excellent

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

    • product dimensions:N/A
    • color: 2 Units Sc-9120b
    • batteries: 1 9V batteries required.
    • item weight: 1.34 pounds
    • pattern:N/A

  • 9

    Kidde Smoke Detector, 10-Year Battery Powered, with LED Status Lights, 85 dB Alarm, 5-inches, 20SD10, 3 Pack
    Kidde
    8.7
    Very Good

    Kidde Smoke Detector, 10-Year Battery Powered, with LED Status Lights, 85 dB Alarm, 5-inches, 20SD10, 3 Pack

    15% Off

  • 10

    SITERWELL Smoke Detector, Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, UL217-10th Listed, GS562A, 6 Packs
    SITERWELL
    Available in: 5 sizes
    8.6
    Very Good

    SITERWELL Smoke Detector, Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, UL217-10th Listed, GS562A, 6 Packs

    20% Off

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