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  1. Amazon.com: Door Sensor

    This product can be controlled with your voice through Alexa-enabled devices such as Amazon Echo and Amazon Tap.

  2. Door & Window Sensors at Lowes.com

    With door and window alarm sensors, enjoy the additional peace of mind of knowing you’ll be alerted when a door or window opens. We offer a variety of sensors to accompany the most …

  3. The 7 Best Door Sensors of 2025 - preventiveapproach.com

    Dec 31, 2025 · Discover the 7 best door sensors of 2026 for enhanced security. Compare features, pros, and cons to find the perfect sensor for your home.

  4. Best Door and Window Sensors of 2026 - SafeWise

    Nov 18, 2025 · Door and window sensors provide extra security without a subscription. Read about the top sensors of 2026 to find the best fit for your home.

  5. Wireless Door Sensors - Best Buy

    Shop for Wireless Door Sensors at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up.

  6. Door Sensors: How They Work and Why You Need Them for …

    Apr 13, 2023 · Discover how door sensors work and why they’re essential for securing your home. Learn about the different types, features, and benefits of door sensors.

  7. Door Alarm Sensors - SafeHome.org

    Oct 24, 2025 · Most door alarms use a type of contact sensor that relies on what’s called a reed switch and a magnet. When the door is closed, the magnet keeps that reed switch circuit …

  8. How Do Door Sensors Work & Do They Alert You of Motion?

    Jul 15, 2025 · Door sensors, using magnets and reed switches, alert you to door openings. They're cheap, easy to install, and can trigger smart home actions.

  9. Amazon.com: Door Sensors

    Shop door sensors for homes, businesses, and more. Get wireless connectivity, smart home integration, and customizable alerts to enhance security.

  10. Door sensor Home Alarms & Sensors at Lowes.com

    Door and window sensors monitor the entry and exit points of your home. These sensors affix to the door or window and, if opened when the alarm is set, can trigger the alarm to sound and …