Menu
Search
Advertising Disclosure

10 Best carbon monoxide detectors of 2026

Save up to 20% off

  • 1

    2 Packs Plug in Carbon Monoxide Detectors,4-in-1 Real-time Digital Display & Monitor,Combination Explosive Gas,Natural Gas Leak,Propane Detector & CO Alarm for Home,Camping,RV, Apartment
    KOABBIT

    2 Packs Plug in Carbon Monoxide Detectors,4-in-1 Real-time Digital Display & Monitor,Combination Explosive Gas,Natural Gas Leak,Propane Detector & CO Alarm for Home,Camping,RV, Apartment

    9.6
    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
    Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
    Real users impact
    • Thousands of users trust our site daily
    • Based on millions of stores and reviews
    • Shoppers influence our rankings

  • 2

    Carbon Monoxide Detectors Plug in 5-in-1 Natural Gas & Smoke Alarm with LCD Display, Monitors CO, Gas, Smoke, Temp & Humidity, Portable CO Detector Backup Battery for Home/RV/Office 1-PCS
    FIRRAX

    Carbon Monoxide Detectors Plug in 5-in-1 Natural Gas & Smoke Alarm with LCD Display, Monitors CO, Gas, Smoke, Temp & Humidity, Portable CO Detector Backup Battery for Home/RV/Office 1-PCS

    9.4
    Excellent

  • 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

    9.2
    Excellent

  • 4

    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)
    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
    9.1
    Excellent

  • 5

    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
    8.8
    Very Good
    Our Rating
  • See Today’s Deals & Prices

  • 6

    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

  • 7

    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

  • 8

    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
    8.3
    Good
    Our Rating

  • 9

    VETOUCH Plug-in Carbon Monoxide Detector with Digital Color Display CO Detector for CO, Temperature & Humidity, 85dB Loud Alert, Self Test Function vetouch CO Detector, for Home, Bedroom, Kitchen, RV
    VETOUCH

    VETOUCH Plug-in Carbon Monoxide Detector with Digital Color Display CO Detector for CO, Temperature & Humidity, 85dB Loud Alert, Self Test Function vetouch CO Detector, for Home, Bedroom, Kitchen, RV

    10% Off
    8.2
    Good

  • 10

    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

    8.0
    Good