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Simple Alarm Systems

Whether you're a homeowner looking to protect your property or a business owner trying to safeguard your employees and inventory, an alarm system can be a valuable part of your overall security plan. It adds another layer of security for your place and peace of mind. Browse the top-ranked list of simple alarm systems below along with associated reviews and opinions.

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  1. SimpliSafe - 7pc Indoor Security System - White

    SKU: J362VFSGH7

    Nice loud alarm. Functions beauty. Home is safer and I sleep sounder with it on. ...Alarm system works as expected i feel much safer in my home!...Fantastic small home alarm system.

    Product Description

    A seven-piece wireless indoor security system in white with app compatibility and 24/7 professional monitoring support.
    See all Security Camera & System Accessories
    Your price for this item is $99.99
    Save $130
    The previous price was $229.99

  2. Ring - Alarm Security Kit 5-Piece (2nd Gen) - White

    SKU: J36CLVS273

    Product Description

    A white, app-compatible security kit with motion detection, battery backup, and easy setup for small homes.
    See all Home Security Systems
    Your price for this item is $199.99

  3. Ring - Alarm 8-Piece Security Kit - White

    SKU: J36CLVS279

    Product Description

    A white, app-compatible security kit with motion detection, battery backup, and real-time alerts for home protection.
    See all Home Security Systems
    Your price for this item is $249.99

  4. Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    SKU: J36CLVSCW6

    Product Description

    A pair of easy-to-install white sensors that alert you via app when doors or windows open.
    See all Door & Window Alarms
    Your price for this item is $44.99

  5. SimpliSafe - 8pc Outdoor Home Security System - White

    SKU: J362VFSGHT

    Great security system...Great system! Easy to set up, easy to use and works well....This 8-piece outdoor home security system was a breeze to set up, and the app makes it incredibly easy to monitor everything...

    Product Description

    An eight-piece white wireless security system with HD outdoor camera, motion detection, and 24/7 monitoring.
    See all Home Security Systems
    Your price for this item is $99.99
    Save $250
    The previous price was $349.99

  6. Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

    SKU: J36CLVSCTR

    Product Description

    A white, battery-powered contact sensor that alerts you via app when doors or windows are opened.
    See all Door & Window Alarms
    Your price for this item is $14.99

  7. SimpliSafe - Wireless Auxiliary Siren - White

    SKU: J3L6GWR598

    Loud alarm for SimpliSafe system....Love this alarm system for my small home. Great price. Needed an added alarm for upstairs. ...The external alarm is a great accessories for the simpli safe System by...

    Product Description

    A weatherized white wireless siren emitting a loud 105dB alarm for enhanced indoor or outdoor security.
    See all Security Camera & System Accessories
    Your price for this item is $59.99

  8. SimpliSafe - Smart Alarm Wireless Indoor Security Camera - White

    SKU: J362VFS8J2

    Product Description

    A wireless white indoor security camera with night vision, two-way audio, motion sensor, and app compatibility.
    See all Indoor Security Cameras
    Your price for this item is $113.99
    Save $36
    The previous price was $149.99

  9. Ring - Alarm Keypad (2nd Gen) - White

    SKU: J36CLVSCRV

    Product Description

    A white indoor keypad with wireless access, rechargeable battery, and emergency buttons for flexible home security.
    See all Home Security Systems
    Your price for this item is $29.95
    Save $5
    The previous price was $34.95

  10. SimpliSafe - Smoke & Carbon Monoxide Alarm Listener - White

    SKU: J362VFSG67

    Product Description

    A white listener that connects to existing detectors for app alerts and professional fire or CO monitoring.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $44.99
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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.