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10 Best first alert zcombo 2 ins 1 of 2026

Save up to 22% off

  • 1

    First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice Location, Battery Operated (pack of 1)
    First Alert

    First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice Location, Battery Operated (pack of 1)

    9.6
    Exceptional
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  • 2

    First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White
    First Alert

    First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White

    • batteries:Yes
    • power source:Battery Powered
    • alarm:Audible
    • style:Battery Powered Alarm
    • sensor:electrochemical, photoelectric
    9.5
    Excellent
    Our Rating

  • 3

    New 2025 First Alert SMCO410 Z-Wave Battery-Powered Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, Single Pack, White
    First Alert

    New 2025 First Alert SMCO410 Z-Wave Battery-Powered Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, Single Pack, White

    13% Off
    9.4
    Excellent

  • 4

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector with Slim Profile Design, SMCO200, 1-Pack
    First Alert

    First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector with Slim Profile Design, SMCO200, 1-Pack

    • batteries:Alkaline
    • power source:Battery Powered
    • alarm:Smoke and CO Alarm
    • style:Slim Profile with Audible Alert
    • sensor:Ionization
    9.3
    Excellent

  • 5

    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

    14% Off
    • color:White
    • batteries:Yes
    • power source:Corded Electric
    • alarm:Smoke and CO Alarm
    • style:Precision Detection
    9.2
    Excellent
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  • 6

    First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and Carbon Monoxide Detector with Slim Profile Design
    First Alert

    First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and Carbon Monoxide Detector with Slim Profile Design

    8.9
    Very Good

  • 7

    First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
    First Alert

    First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White

    8.6
    Very Good
    Our Rating

  • 8

    FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
    First Alert

    FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White

    22% Off
    8.4
    Good
    Our Rating

  • 9

    First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location
    First Alert

    First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location

    8.3
    Good

  • 10

    First Alert Smoke Alarm, 10-Year Sealed Battery Dual Sensor Detector with Test & Silence Button, SM310, 1-Pack
    First Alert

    First Alert Smoke Alarm, 10-Year Sealed Battery Dual Sensor Detector with Test & Silence Button, SM310, 1-Pack

    8.0
    Good