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9 Best home carbon monoxide detectors of 2025

Save up to 40% off
  • Best Choice

    1

    2 Packs Combination Gas & Carbon Monoxide Detector, 4-in-1 Natural Gas Detector & Carbon Monoxide Alarm with Temperature(°F) & Humidity,Propane & CO Detector for Home,RV,Apartment
    KOABBIT

    2 Packs Combination Gas & Carbon Monoxide Detector, 4-in-1 Natural Gas Detector & Carbon Monoxide Alarm with Temperature(°F) & Humidity,Propane & CO Detector for Home,RV,Apartment

    23% Off
    9.7
    Exceptional
  • 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
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  • Value for Money

    2

    X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R
    X-Sense

    X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R

    9.6
    Exceptional
    Our Rating

  • 3

    Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
    Kidde

    Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

    34% Off
    9.4
    Excellent
    Our Rating

  • 4

    First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack
    First Alert

    First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

    9.3
    Excellent
    Our Rating

  • 5

    Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
    Kidde

    Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

    9.2
    Excellent
    Our Rating
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  • 6

    Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor, LCD Display and Sound Warning for Home, Bedroom, Kitchen
    SHYEEH

    Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor, LCD Display and Sound Warning for Home, Bedroom, Kitchen

    • power source:Battery Powered
    • alarm:85dB to 215-430ft
    • sensor:Electrochemical sensor
    • battery:3 AA batteries required
    • dimensions:4.25 x 4.21 x 1.93 inches
    8.9
    Very Good

  • 7

    First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
    First Alert

    First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White

    40% Off
    8.8
    Very Good
    Our Rating

  • 8

    Combination Gas & Carbon Monoxide Detectors Plug in, 2-in-1 Natural Gas Detector & Carbon Monoxide Alarm, CO Detector Alarm & Propane, Methane, Explosive Gas Detector for Home,RV,Easy to Install
    Hembisen

    Combination Gas & Carbon Monoxide Detectors Plug in, 2-in-1 Natural Gas Detector & Carbon Monoxide Alarm, CO Detector Alarm & Propane, Methane, Explosive Gas Detector for Home,RV,Easy to Install

    24% Off
    8.5
    Good

  • 9

    3 Pack Carbon Monoxide detectors,co Detector,Carbon Monoxide Alarm,co2 Detector Battery Powered with LCD Display,Carbon Monoxide Detector,UL2034 Standards,for Home
    pumwry

    3 Pack Carbon Monoxide detectors,co Detector,Carbon Monoxide Alarm,co2 Detector Battery Powered with LCD Display,Carbon Monoxide Detector,UL2034 Standards,for Home

    8.4
    Good
    Our Rating