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10 Best carbon monoxide detector for landlords of 2026

Save up to 20% off
  • Best Choice

    1

    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)
    Clicked 667 times in the last month
    NICGOL

    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)

    20% Off
    9.8
    Exceptional
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  • Value for Money

    2

    Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
    Kidde

    Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display

    15% Off
    • power source:Plug In
    • alarm:Audible
    • sensor:Ionization
    • battery:2 AAA batteries included
    • dimensions:1.75D x 3.75W x 6.06H
    9.5
    Excellent
    Our Rating

  • 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

    9.3
    Excellent

  • 4

    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

    9.1
    Excellent

  • 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

    10% Off
    9.0
    Excellent
    Our Rating
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  • 6

    SHYEEH Smoke and Carbon Monoxide Detectors, Combination Smoke Alarm and Carbon Monoxide Detector Battery Powered, CO Detector Alarm with Sensitive Sensor, Sound Warning and LCD Display, CDR-803
    SHYEEH

    SHYEEH Smoke and Carbon Monoxide Detectors, Combination Smoke Alarm and Carbon Monoxide Detector Battery Powered, CO Detector Alarm with Sensitive Sensor, Sound Warning and LCD Display, CDR-803

    8.8
    Very Good

  • 7

    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

    8.7
    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
    8.4
    Good

  • 9

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

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

    8.3
    Good
    Our Rating

  • 10

    FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)
    First Alert

    FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)

    8.1
    Good
    Our Rating