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Labor Day SaleEnds September 7. Limited quantities. No rainchecks.Shop now

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Best Buy

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home security & monitoring

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door & window security

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door & window alarms

Wireless Window Sensors

Enhance your home security with wireless window sensors, the perfect blend of convenience and peace of mind. These innovative devices are designed to alert you whenever a window is opened, providing an extra layer of protection for your home and loved ones. With easy installation and seamless integration into your existing smart home system, wireless window sensors offer a hassle-free solution to monitor entry points in real-time. Explore a range of options that cater to different needs and preferences, ensuring that your home remains safe and secure without compromising on style or functionality.

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

    SKU: J36CLVSCTR

    Great...Great ZWave device!...This works great! Easy to set up with my home automation hub (Homey Pro).

    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

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

    SKU: J36CLVSCW6

    Really great security system to add to your home without having a company charge you high fees monthly...I also love how easy they are to install and get up and running on the app....It’s also great to...

    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 $66.44

  3. SimpliSafe - 1pack Entry Sensor - White

    SKU: J3L6GWR5Y9

    Great Product!...I love my SimpliSafe system, and Best Buy helps me by stocking what I need. Thank you!...Love it...SimpliSafe is one of the best securities system in the market.

    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. SimpliSafe - 4pack Entry Sensor - White

    SKU: J362VFSXGR

    Best Deal on Simpli Safe is at Best Buy...The best deal the best security system....Simpli safe wouldn’t honor the 4 pk pricing but Best Biy sure would. That’s why I love Best Buy...I love my SimpliSafe...

    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

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

    SKU: JJ8RHCJJVQ

    Love it!😍...Great...I really like this door sensor, it works great and the alarm is loud enough to hear throughout the house

    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 $17.99
    Save $2
    The previous price was $19.99

  6. Ring - Window & Door Sensor Instant notifications on Amazon Sidewalk, no base station needed, Pro Monitoring (sold separately) - White

    SKU: J39TLSQTZ2

    Product Description

    A battery-powered white sensor providing instant entry alerts via Amazon Sidewalk, no hub required.
    See all Door & Window Alarms
    Your price for this item is $19.99
    Save $10
    The previous price was $29.99

  7. Aeotec - Z-Wave Plus v2 Door / Window Sensor 7 Pro, Gen7

    SKU: J3GZ9GRQ9S

    Product Description

    A discreet sensor that wirelessly monitors doors or windows and triggers alerts via Z-Wave automation.
    See all Door & Window Alarms
    Your price for this item is $78.23

  8. XODO - PS1 Wi-Fi Smart Door Security Sensor – Wireless Home Alarm System (2-Pack)

    SKU: JXK4Z3Y732

    Product Description

    A wireless smart door sensor pair that sends instant alerts and features motion detection with LED lighting.
    See all Motion Sensors & Detectors
    Your price for this item is $22.99

  9. FEIT ELECTRIC - Battery Powered Wi-Fi Smart Window Sensor - White

    SKU: J7C555P3QP

    Product Description

    A battery-powered white sensor that alerts your phone to door or window openings and tampering.
    See all Door & Window Alarms
    Your price for this item is $35.48
    Save $1
    The previous price was $36.81

  10. Ring - Window-Door Sensor Instant notifications on Amazon Sidewalk, no base station needed, Pro Monitoring sold separately 2pk - White

    SKU: J39TLSSTFT

    Product Description

    A battery-powered white sensor pair delivers instant entry alerts via Amazon Sidewalk, no hub required.
    See all Door & Window Alarms
    Your price for this item is $34.99
    Save $15
    The previous price was $49.99
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FAQ

Most wireless window sensors connect to your smart home system using Wi-Fi, Zigbee, or Z-Wave protocols. Check the product specifications to ensure compatibility with your existing smart hub or app.

Yes, many wireless window sensors offer mobile app integration, allowing you to receive instant notifications or alerts on your smartphone whenever a window is opened or closed.

Wireless window sensors are typically designed for easy DIY installation. Most models use adhesive backing or simple mounting hardware, so you can set them up without professional assistance.

Many wireless window sensors are compatible with popular voice assistants, enabling you to check sensor status or integrate them into routines using Alexa, Google Assistant, or Apple HomeKit.

Most wireless window sensors feature low-battery indicators, either through an LED light on the device or a notification in the connected app, so you'll know when it's time to replace the batteries.