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smoke & carbon monoxide detectors

Kidde Smoke Alarms

Kidde smoke alarms are designed to alert you to the presence of smoke, allowing you to escape safely. They are available in both ionization and photoelectric styles. Browse the top-ranked list of Kidde smoke alarms below along with associated reviews and opinions. 

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  1. First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White

    SKU: J7XK72GYWV

    Product Description

    A battery-operated white alarm set offering advanced smoke and carbon monoxide detection with easy installation.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $47.99
    Save $4
    The previous price was $51.99

  2. First Alert - SM210 Sealed 10-Year-Battery Smoke Alarm, Slim Profile Design - White

    SKU: J7XK72GPJL

    Product Description

    A slim, white smoke alarm with a sealed 10-year battery and advanced sensing to reduce false alarms.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $40.00

  3. First Alert - Smoke and Carbon Monoxide Detector Battery Powered - White

    SKU: JJ8Z8VQ4FV

    Product Description

    A battery-powered white detector that alerts you to smoke and carbon monoxide, with app compatibility.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $113.99
    Save $16
    The previous price was $129.99

  4. First Alert - SM210M Sealed 10-Year-Battery Micro Smoke Alarm - White

    SKU: J7XK72GYZ3

    Product Description

    A compact white smoke alarm with a sealed 10-year battery and advanced nuisance-reducing detection technology.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $49.29
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.