Smart Door And Window Sensors
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Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White
SKU: J36CLVSCTRRing alarm is the best!...I love the convenience of the whole system and the cost to have this system is very cost effective and...Great
See all Door & Window AlarmsProduct Description
A white, battery-powered contact sensor that alerts you via app when doors or windows are opened.Your price for this item is $14.99 -
Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White
SKU: J36CLVSCW6Great sensors for entry points...These work great with the main ring alarm base station....I also love how easy they are to install and get up and running on the app....It’s also great to be able to buy...
See all Door & Window AlarmsProduct Description
A pair of easy-to-install white sensors that alert you via app when doors or windows open.Your price for this item is $54.44Save $12The previous price was $66.44 -
ecobee - SmartSensor 2-Pack - Temperature & Occupancy Detection, Comfort, Security, Energy Savings - White
SKU: JXC53VLLKKBest product you can get...Best add on you can get give your temperature house great performance...Best
See all Water & Temperature SensorsProduct Description
A pair of white, battery-powered sensors that detect room occupancy and enable smart temperature control via app.Your price for this item is $74.99Save $25The previous price was $99.99 -
SimpliSafe - 4pack Entry Sensor - White
SKU: J362VFSXGRBest 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...Best prices allways...Purchased...
See all Motion Sensors & DetectorsProduct Description
A set of four white, battery-powered entry sensors for easy installation on doors or windows.Your price for this item is $54.99 -
ecobee - Smart Sensor for Doors & Windows 2 Pack - Wifi Contact Sensor for Home Security, Energy Savings - White
SKU: JXC53VLSZGlove!...Love it...Also, the ability to build out a security system utilizing Alexa is great.
See all Door & Window AlarmsProduct Description
A white, battery-powered sensor that sends instant notifications when doors or windows are opened or closed.Your price for this item is $49.99Save $10The previous price was $59.99 -
SimpliSafe - Motion Sensor - White
SKU: J362VFS82GWorks as intended, love the pet setting. So far no issues have dogs over 50 lbs....Works great with Simplisafe, protects our rentals and Airbnbs...Pet motion works great...Great!
See all Door & Window AlarmsProduct Description
A white, battery-powered motion sensor with pet detection, 90º field of view, and app compatibility.Your price for this item is $30.99Save $4The previous price was $34.99 -
Aqara - T1 Door and Window Sensor- Requires Hub product, Supports Apple HomeKit, Alexa, Google, SmartThings - White
SKU: JJ8RHCJJVQLove it!😍...It seems like a great idea and I love the fact that it barely uses any energy. 
See all Door & Window AlarmsProduct Description
A white battery-powered sensor that detects door or window status and supports major smart home platforms.Your price for this item is $19.99 -
Philips - Hue Secure Contact Sensor - 2PK - White
SKU: J7GHXKQXSKSee all Door & Window AlarmsProduct Description
A white, battery-powered contact sensor pair with adhesive mounting, app alerts, and smart-home compatibility.Your price for this item is $83.15 -
Philips - Hue Secure Contact Sensor - White
SKU: J7GHXKQXRZSee all Door & Window AlarmsProduct Description
A white, battery-powered contact sensor with adhesive mounting, app alerts, and Alexa, Google Home, Hue compatibility.Your price for this item is $50.39 -
Ring - Window & Door Sensor Instant notifications on Amazon Sidewalk, no base station needed, Pro Monitoring (sold separately) - White
SKU: J39TLSQTZ2See all Door & Window AlarmsProduct Description
A battery-powered white sensor providing instant entry alerts via Amazon Sidewalk, no hub required.Your price for this item is $19.99Save $10The previous price was $29.99 -
Ring - Outside Door Sensor (Newest Model) – Amazon Sidewalk, no hub needed, Pro Monitoring (sold separately) - Gray
SKU: J39TLS6K38See all Door & Window AlarmsProduct Description
A gray, weather-resistant outdoor sensor offering reliable, app-compatible security without a hub using Amazon Sidewalk.Your price for this item is $19.99Save $20The previous price was $39.99 -
Ring - Outside Door Sensor (Newest Model) – Amazon Sidewalk, no hub needed, Pro Monitoring (sold separately), 2pk - Gray
SKU: J39TLSS28FSee all Door & Window AlarmsProduct Description
A pair of gray, battery-powered outdoor sensors offering app compatibility and reliable, hub-free home security.Your price for this item is $34.99Save $35The previous price was $69.99 -
XODO - PS1 Wi-Fi Smart Door Security Sensor – Wireless Home Alarm System (2-Pack)
SKU: JXK4Z3Y732See all Motion Sensors & DetectorsProduct Description
A wireless smart door sensor pair that sends instant alerts and features motion detection with LED lighting.Your price for this item is $22.99 -
Ring - Window-Door Sensor Instant notifications on Amazon Sidewalk, no base station needed, Pro Monitoring sold separately 6pk - White
SKU: J39TLSQJV2See all Door & Window AlarmsProduct Description
A set of six white battery-powered sensors providing instant entry alerts via Amazon Sidewalk, no hub required.Your price for this item is $79.99Save $60The previous price was $139.99 -
Nomo Smart Care - 1-Pack Satellite - White
SKU: J3R84ZRYTQI absolutely love this product! It is a great asset to the family....I love that is is durable and the installation process was very easy. The performance is amazing....I also love the value of this product....
See all Door & Window AlarmsProduct Description
A white plug-in satellite sensor that monitors sound and motion, sending real-time updates to the app.Your price for this item is $39.99 -
Fosmon - 1 Pack WaveLink Add-On Door Contact Sensor Unit (No Receiver) - White
SKU: J3KCT9THGLSee all Door & Window AlarmsProduct Description
A white magnetic door sensor transmitter with LED indicator, expanding your wireless entry alert system.Your price for this item is $11.49 -
Fosmon - 4 Pack WaveLink Add-On Door Contact Sensor Unit (No Receiver) - White
SKU: J3KCTCJSQJSee all Door & Window AlarmsProduct Description
A set of four white magnetic door contact sensors with LED indicators for expanding compatible wireless alert systems.Your price for this item is $26.99 -
Fosmon - 2 Pack WaveLink Add-On Door Contact Sensor Unit (No Receiver) - White
SKU: J3KCTCJSRFSee all Door & Window AlarmsProduct Description
A white wireless magnetic door sensor with LED indicator, designed for easy expansion of compatible alert systems.Your price for this item is $17.99 -
SwamCam - Door & Window Sensor Pool Alarm with Hub System/Certified to UL2017 Standard/ Safety for Pool Gates & All Doors - White
SKU: J3Q5QYFWXTSee all Door & Window AlarmsProduct Description
A water-resistant, battery-powered sensor that triggers alarms and phone alerts for enhanced poolside entry safety.Your price for this item is $119.95 -
Philips - Hue Secure Contact Sensor - 2PK - Black
SKU: J7GHXKQXY5See all Door & Window AlarmsProduct Description
A black, adhesive contact sensor with flexible magnetic placement, app alerts, and smart-home compatibility.Your price for this item is $83.15 -
Philips - Hue Secure Contact Sensor - Black
SKU: J7GHXKQX6GSee all Door & Window AlarmsProduct Description
A black adhesive contact sensor with app alerts, flexible magnet placement, and smart home compatibility.Your price for this item is $50.39 -
Ring - Glass Break Sensor (newest model) – Amazon Sidewalk, no hub needed, Pro Monitoring (sold separately) - White
SKU: J39TLSS647See all Door & Window AlarmsProduct Description
A white battery-powered sensor that detects glass breakage and connects via Amazon Sidewalk without a hub.Your price for this item is $19.99Save $20The previous price was $39.99 -
Ring - Window-Door Sensor Instant notifications on Amazon Sidewalk, no base station needed, Pro Monitoring sold separately 2pk - White
SKU: J39TLSSTFTSee all Door & Window AlarmsProduct Description
A battery-powered white sensor pair delivers instant entry alerts via Amazon Sidewalk, no hub required.Your price for this item is $29.99Save $20The previous price was $49.99 -
Ring - Glass Break Sensor (newest model) – Amazon Sidewalk, no hub needed, Pro Monitoring (sold separately), 2pk - White
SKU: J39TLSQWPGSee all Door & Window AlarmsProduct Description
A battery-powered white sensor pair detects glass breaks and stays connected via Amazon Sidewalk, no hub required.Your price for this item is $34.99Save $35The previous price was $69.99
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FAQ
Smart door and window sensors may use Wi-Fi, Bluetooth, Zigbee, Z-Wave, or Thread, depending on the model. Check the sensor’s connection requirements and compatibility with your smart home platform before choosing one.
Some sensors connect directly to Wi-Fi, while others require a compatible hub or bridge. Thread-based models generally need a Thread border router, and Matter-compatible models may also require a Matter controller. These roles can be built into certain smart speakers, displays, or hubs.
Many smart door and window sensors use replaceable batteries, such as coin-cell or cylindrical batteries. Battery type and replacement procedures vary by model. Some companion apps display battery status or provide low-battery notifications.
Compatible smart home platforms can use a sensor’s open or closed status to trigger routines. Examples include turning on an entryway light when a door opens or pausing compatible heating and cooling equipment while a window is open. Available routines depend on the sensor, platform, and connected devices.
Many contact-style sensors have two parts: a sensor and a magnet. One part mounts on the door or window, and the other mounts on the frame. Depending on the model, installation may use adhesive strips or screws. Follow the manufacturer’s placement and alignment instructions.