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10 Best smoke and carbon monoxide detectors of 2025

Save up to 25% off
  • Best Choice

    1

    Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack
    Kidde

    Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack

    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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    • Thousands of users trust our site daily
    • Based on millions of stores and reviews
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  • Value for Money

    2

    X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 3-Pack
    X-Sense

    X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 3-Pack

    9.4
    Excellent
    Our Rating

  • 3

    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

    9.3
    Excellent

  • 4

    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)

    25% Off
    9.2
    Excellent

  • 5

    6 Packs, 2 in 1,Smoke Carbon Monoxide Detector,Carbon Monoxide Detectors/Smoke Alarm,85 dB Alarm,Large Screen Readout,Test Button,Battery Operated, Work State LED Flash,Easy Install
    OLUNCLE

    6 Packs, 2 in 1,Smoke Carbon Monoxide Detector,Carbon Monoxide Detectors/Smoke Alarm,85 dB Alarm,Large Screen Readout,Test Button,Battery Operated, Work State LED Flash,Easy Install

    20% Off
    • batteries:3 AA included
    • power source:Battery Powered
    • alarm:85dB
    • sensor:Photoelectric, Electrochemical
    • dimensions:1.37D x 4.21W x 4.21H
    9.1
    Excellent
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  • 6

    Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 2 Pack
    Kidde

    Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 2 Pack

    9.0
    Excellent

  • 7

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack
    First Alert

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack

    8.7
    Very Good

  • 8

    Kidde, 30CUD10, Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators
    Kidde

    Kidde, 30CUD10, Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators

    8.6
    Very Good

  • 9

    X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Standalone Model SC01, Single Pack
    X-Sense

    X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Standalone Model SC01, Single Pack

    • batteries:2 Lithium Metal
    • power source:10-Year Sealed Battery
    • alarm:Loud 85 dB
    • sensor:Photoelectric, Electrochemical
    • dimensions:5.7 x 5.7 x 2 inches
    8.3
    Good

  • 10

    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
    Kidde

    Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack

    12% Off
    8.0
    Good