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10 Best combination smoke carbon monoxide detectors of 2025

Save up to 39% off
  • Best Choice

    1

    3-Pack Carbon Monoxide Detectors，Smoke Detector，2 in 1 CO & Smoke Alarm，Smoke Combination CO Alarm,Fire CO for Alarm for Home and Kitchen,LED Screen, CO Carbon Monoxide & Smoke Alarm,3-Pack
    TJTFJS

    3-Pack Carbon Monoxide Detectors，Smoke Detector，2 in 1 CO & Smoke Alarm，Smoke Combination CO Alarm,Fire CO for Alarm for Home and Kitchen,LED Screen, CO Carbon Monoxide & Smoke Alarm,3-Pack

    9.9
    Exceptional
    Our Rating
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  • Value for Money

    2

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White
    First Alert

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White

    9.8
    Exceptional

  • 3

    X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)
    X-Sense

    X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)

    9.7
    Exceptional

  • 4

    Combination Carbon Monoxide and Smoke Alarm with Digital Display, Battery Operated Smoke and Carbon Monoxide detectors 1-Pack
    JNHCD

    Combination Carbon Monoxide and Smoke Alarm with Digital Display, Battery Operated Smoke and Carbon Monoxide detectors 1-Pack

    19% Off
    • power source:Battery Powered
    • alarm:85 dB Audible
    • sensor:Electrochemical
    • dimensions:5 x 4.64 x 1.92 inches
    • battery:Zinc Carbon
    9.5
    Excellent
    Our Rating

  • 5

    2 Pack Smoke and Carbon Monoxide Detector,Smoke Detector Carbon Monoxide Detector Combo with Batteries,Fire Alarm Smoke Detector with Test Button and Digital Display
    LEMONTAIL

    2 Pack Smoke and Carbon Monoxide Detector,Smoke Detector Carbon Monoxide Detector Combo with Batteries,Fire Alarm Smoke Detector with Test Button and Digital Display

    39% Off
    • power source:Battery Powered
    • alarm:Audible 85 dB
    • sensor:Electrochemical, Photoelectric
    • dimensions:4.09D x 1.53W x 4.09H
    • battery:N/A
    9.4
    Excellent
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  • 6

    First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack
    First Alert

    First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack

    9.2
    Excellent

  • 7

    Yfwsrecinoe 2 Pack Upgraded Combination Smoke and Carbon Monoxide Alarm Detector, Dual Sensor Smoke Alarm&Carbon Monoxide Detector (Includes Battery)
    Yfwsrecinoe

    Yfwsrecinoe 2 Pack Upgraded Combination Smoke and Carbon Monoxide Alarm Detector, Dual Sensor Smoke Alarm&Carbon Monoxide Detector (Includes Battery)

    9.1
    Excellent

  • 8

    Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack
    Kidde

    Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack

    34% Off
    • batteries:2 AA Batteries
    • power source:Battery Powered
    • alarm:Combination Smoke and Carbon Monoxide Alarm
    • style:6th Edition Alarm
    • sensor:Photoelectric, Electrochemical
    9.0
    Excellent
    Our Rating

  • 9

    3 Pack Combination Photoelectric Smoke and Carbon Monoxide Alarm Detector with Digital Display; Battery-Operated Smoke Carbon Monoxide Alarm
    JNHCD

    3 Pack Combination Photoelectric Smoke and Carbon Monoxide Alarm Detector with Digital Display; Battery-Operated Smoke Carbon Monoxide Alarm

    20% Off
    8.9
    Very Good
    Our Rating

  • 10

    AEGISLINK Smoke and Carbon Monoxide Detector 10-Year Lifespan with Replaceable Battery, Photoelectric Fire Alarm and Electrochemical CO Alarm with Test/Silence Button, SC200, 1-Pack
    AEGISLINK

    AEGISLINK Smoke and Carbon Monoxide Detector 10-Year Lifespan with Replaceable Battery, Photoelectric Fire Alarm and Electrochemical CO Alarm with Test/Silence Button, SC200, 1-Pack

    36% Off
    • batteries:1 CR123A included
    • power source:Battery Powered
    • alarm:Audible
    • style:Independent
    • sensor:electrochemical,photoelectric
    8.8
    Very Good
    Our Rating