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door & window alarms

Door Window Alarms

Enhance the security of your home with door window alarms, an essential addition to any safety-conscious household. These compact devices provide an extra layer of protection by alerting you to any unauthorized entry through doors or windows. Easy to install and user-friendly, they offer peace of mind whether you're at home or away. Perfect for apartments, homes, or offices, door window alarms are a cost-effective solution to help safeguard your loved ones and valuables. Explore our selection to find the perfect fit for your security needs and take the first step towards a safer living environment.

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  1. SimpliSafe - 4pack Entry Sensor - White

    SKU: J362VFSXGR

    We picked up these window/door sensors as an addition to the ones we had with the simplisafe system so that we cover all the windows and doors. ...Great door sensor...Easy to install and setup. I have...

    Product Description

    A set of four white, battery-powered entry sensors for easy installation on doors or windows.
    See all Motion Sensors & Detectors
    Your price for this item is $54.99

  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. SimpliSafe - 1pack Entry Sensor - White

    SKU: J3L6GWR5Y9

    Works great with the alarm it chimes anytime a door or window is open. ...SIMPLISAFE Door/window alarm...Love the fact you can be notified every time a window or door is opened... helps e a lot!

    Product Description

    A discreet white entry sensor that easily installs on doors or windows for reliable home security monitoring.
    See all Motion Sensors & Detectors
    Your price for this item is $15.99

  4. ecobee - SmartSensor for Doors and Windows (2-Pack) - White

    SKU: JXC53VLSZG

    These sensors are similar to most other magnetic contact-type door and window sensors in that one side is attached to the stationary door or window frame and the other to the moving part next to the stationary...

    Product Description

    A white, battery-powered sensor that sends instant notifications when doors or windows are opened or closed.
    See all Door & Window Alarms
    Your price for this item is $79.99

  5. Ring - Alarm Security Kit 9-Piece (2nd Gen) - White

    SKU: J39HW69Z65

    Rin alarm Pro...Alarm System

    Product Description

    A comprehensive white security kit featuring app compatibility, battery backup, and real-time alerts for home protection.
    See all Home Security Systems
    Your price for this item is $299.99

  6. TP-Link - Tapo Smart Home Security Kit - Motion Detector, Contact Sensors x2, and Smart Hub w/ adjustable chime/siren Included - White

    SKU: J3GWLQQWH6

    Door/window sensors...Like I’d like to get an alarm if front door is opened after 11 but only if there’s no motion detected inside right before that.

    Product Description

    A comprehensive white smart sensor kit offering motion detection, contact sensors, real-time alerts, and app integration.
    See all Motion Sensors & Detectors
    Your price for this item is $69.99

  7. Aqara - T1 Door and Window Sensor- Requires Hub product, Supports Apple HomeKit, Alexa, Google, SmartThings - White

    SKU: JJ8RHCJJVQ

    Not just for doors and windows!...I have them on all my doors in the house, garage and even the yard gates and shed....Great sensors for HomeKit Alarm...I bought a bunch of these for my condo's doors...

    Product Description

    A white battery-powered sensor that detects door or window status and supports major smart home platforms.
    See all Door & Window Alarms
    Your price for this item is $16.99
    Save $3
    The previous price was $19.99

  8. 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
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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.