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10 Best hardwired smoke and co detectors of 2025

Save up to 37% off
  • Best Choice

    1

    X-Sense Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP04, 3-Pack
    X-Sense

    X-Sense Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP04, 3-Pack

    • batteries:Yes
    • power source:AC
    • alarm:Audible
    • style:AC Hardwired Model
    • sensor:electrochemical, photoelectric
    9.9
    Exceptional
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  • Value for Money

    2

    First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup
    First Alert

    First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

    12% Off
    • batteries:1 9V batteries required
    • power source:Battery Powered
    • alarm:Audible
    • style:10-year limited warranty
    • sensor:Ionization
    9.7
    Exceptional
    Our Rating

  • 3

    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

    37% Off
    9.4
    Excellent

  • 4

    Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators
    Kidde

    Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators

    • batteries:10-year battery backup
    • power source:Hardwired
    • alarm:Smoke and Carbon Monoxide Detector
    • style:Modern
    • sensor:Photoelectric, Electrochemical
    9.3
    Excellent

  • 5

    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
    First Alert

    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack

    9.0
    Excellent
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  • 6

    X-Sense AC Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP06, 1-Pack
    X-Sense

    X-Sense AC Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP06, 1-Pack

    • batteries:1 9V included
    • power source:AC Hardwired
    • alarm:Audible
    • style:AC Hardwired Model XP06
    • sensor:Electrochemical
    8.9
    Very Good

  • 7

    Kidde, 30CUA10, Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators
    Kidde

    Kidde, 30CUA10, Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators

    • batteries:Yes
    • power source:Hardwired
    • alarm:Smoke and Carbon Monoxide Detector
    • style:Detector
    • sensor:Photoelectric, Electrochemical
    8.8
    Very Good

  • 8

    BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
    First Alert

    BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack

    8.5
    Good
    Our Rating

  • 9

    X-Sense Smoke Detector Carbon Monoxide Detector Combo Hardwired with Voice Location, Hardwired Interconnected Smoke and Carbon Monoxide Detector, Model XP02-AR, 1-Pack
    X-Sense

    X-Sense Smoke Detector Carbon Monoxide Detector Combo Hardwired with Voice Location, Hardwired Interconnected Smoke and Carbon Monoxide Detector, Model XP02-AR, 1-Pack

    • batteries:1 Lithium Metal included
    • power source:AC
    • alarm:Hardwired Interconnected Model
    • style:Hardwired Interconnected Model
    • sensor:Photoelectric and electrochemical
    8.4
    Good
    Our Rating

  • 10

    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup and Voice & Location Alerts, SMCO100V-AC, 1-Pack
    First Alert

    First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup and Voice & Location Alerts, SMCO100V-AC, 1-Pack

    • color:White
    • batteries:Yes
    • power source:Corded Electric
    • alarm:Smoke and CO Alarm
    • style:Precision Detection
    8.3
    Good