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10 Best carbon monoxide detectors of 2025

Save up to 30% off
  • Best Choice

    1

    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

    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

    VEAOC Outdoor 3-in-1 Portable Carbon Monoxide Detector, More Than 300 Hours of Standby Time, Equipped with Lighting, Magnetic Rear Seat and Hook Design, Featuring CO, Temperature and Humidity Sensors
    VEAOC

    VEAOC Outdoor 3-in-1 Portable Carbon Monoxide Detector, More Than 300 Hours of Standby Time, Equipped with Lighting, Magnetic Rear Seat and Hook Design, Featuring CO, Temperature and Humidity Sensors

    11% Off
    9.6
    Exceptional

  • 3

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

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

    9.4
    Excellent

  • 4

    4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)
    NICGOL

    4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)

    30% Off
    9.3
    Excellent

  • 5

    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

    9.2
    Excellent
    Our Rating
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  • 6

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

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

    14% Off
    9.0
    Excellent
    Our Rating

  • 7

    First Alert Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO605, White, 1-Pack
    First Alert

    First Alert Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO605, White, 1-Pack

    8.8
    Very Good
    Our Rating

  • 8

    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
    8.5
    Good

  • 9

    Carbon Monoxide Detectors,CO Detectors Battery Powered,2 Pack Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office
    USBNOVEL

    Carbon Monoxide Detectors,CO Detectors Battery Powered,2 Pack Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office

    8.4
    Good

  • 10

    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

    8.3
    Good
    Our Rating