Ring Window Sensor(123)
Best seller, Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included) From $11.99

Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
Flash Deal, Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black From $12.58

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black
Best seller, Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office Was $19.40

Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
HomeZone Wi-Fi Smart Wireless Window and Door Sensor with App Alerts, White From $19.97

HomeZone Wi-Fi Smart Wireless Window and Door Sensor with App Alerts, White
Best seller, Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System $41.99 Was $49.99 $10.50/ea

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System
Xtreme Smart Wi-Fi Window/Door Sensor | Personal Security with Adhesive Backing | Powered by 2 AAA Batteries | Instant Notifications & Remote Access | No Hub Required $8.99 Was $9.99

Xtreme Smart Wi-Fi Window/Door Sensor | Personal Security with Adhesive Backing | Powered by 2 AAA Batteries | Instant Notifications & Remote Access | No Hub Required
Vivint dw12 window and door sensor $41.95

Vivint dw12 window and door sensor
WiFi Door and Window Sensor, Smart Entry Alert Contact Sensor with App Notifications, White $16.95

WiFi Door and Window Sensor, Smart Entry Alert Contact Sensor with App Notifications, White
Best seller, HomeZone Wi-Fi Smart Keypad Window and Door Alarm with 4-Digit PIN, 100+ dB Alarm, White $14.97

HomeZone Wi-Fi Smart Keypad Window and Door Alarm with 4-Digit PIN, 100+ dB Alarm, White
Lot of 5 XFINITY Security Visonic XHS2-TY MCT-350 SMA ZigBee Door Window Sensor $24.95

Lot of 5 XFINITY Security Visonic XHS2-TY MCT-350 SMA ZigBee Door Window Sensor
Pack of 6 Personal Security Window Door Alarm Bell Wireless Sensor Burglar Alarm $13.98 $2.33/ea

Pack of 6 Personal Security Window Door Alarm Bell Wireless Sensor Burglar Alarm
Wsdcam Window Alarm Sensors 125dB Ultra-Slim Wireless Glass Break Detector Vibration Alarm 8 Pack $50.99

Wsdcam Window Alarm Sensors 125dB Ultra-Slim Wireless Glass Break Detector Vibration Alarm 8 Pack
Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $40.99

Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
Tuya Door Window Sensor Wifi Open Close Detector for Home Security and Smart Life Remote Control $9.94

Tuya Door Window Sensor Wifi Open Close Detector for Home Security and Smart Life Remote Control
Black Friday Deal, Door Alarm, AMIR Anti-Theft 125DB Door Alarm Window Alarm for Home Office Warehouse Shop Elderly Kids Security 4PCS From $15.99
Door Alarm, AMIR Anti-Theft 125DB Door Alarm Window Alarm for Home Office Warehouse Shop Elderly Kids Security 4PCS
Door Window Alarm, 130dB Wireless Sensor Alarm for Kids & Home Security Door Alarms for Kids Safety, Easy Installation Doorbell Alarms for Office House Window Pool $15.49

Door Window Alarm, 130dB Wireless Sensor Alarm for Kids & Home Security Door Alarms for Kids Safety, Easy Installation Doorbell Alarms for Office House Window Pool
Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert, Store Door Entry Chime Doorbell with 1 PIR Motion Sensor Detectors and 1 Wireless Plug-in Receiver for Front Doors Window Frames $14.98

Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert, Store Door Entry Chime Doorbell with 1 PIR Motion Sensor Detectors and 1 Wireless Plug-in Receiver for Front Doors Window Frames
Lot of 2 XFINITY Visonic ZigBee White Door/Window 2.4GHz Sensor - XHS2-UE From $15.99

Lot of 2 XFINITY Visonic ZigBee White Door/Window 2.4GHz Sensor - XHS2-UE
SimpliSafe ES3 Entry Sensor White $13.49

SimpliSafe ES3 Entry Sensor White
GJX WIFI Door Window Sensor,Smart Door Window Alarm Sensor Wireless Remote Control For Home Security,Door Security Devices $12.10

GJX WIFI Door Window Sensor,Smart Door Window Alarm Sensor Wireless Remote Control For Home Security,Door Security Devices
Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App From $22.07

Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App
Wink Smart Door/Window Sensor, Hub Required $15.99

Wink Smart Door/Window Sensor, Hub Required
Centralite Zigbee 3.0 Door and Window Contact Sensor, Up to 2-Year Battery CR2032 Included $13.50 Was $19.95

Centralite Zigbee 3.0 Door and Window Contact Sensor, Up to 2-Year Battery CR2032 Included
Tuya Wireless Door Window Sensor with WiFi Linkage, 2 AAA Batteries Included, White ABS $12.94

Tuya Wireless Door Window Sensor with WiFi Linkage, 2 AAA Batteries Included, White ABS
WIFI Wireless Smart Magnetic Door Window Sensor Detector Alarm For Google Home $12.99

WIFI Wireless Smart Magnetic Door Window Sensor Detector Alarm For Google Home
2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $18.19

2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
Tuya WiFi Door Sensor Window Sensor Smart Home Wireless Door Detector Door Open / Closed Alarm- System $12.46

Tuya WiFi Door Sensor Window Sensor Smart Home Wireless Door Detector Door Open / Closed Alarm- System
5Set/Lot Wireless Burglar Alarm Door and Window Magnetic Sensor Alarm Smart Home Security Protection Door Window Alarm,White $11.89

5Set/Lot Wireless Burglar Alarm Door and Window Magnetic Sensor Alarm Smart Home Security Protection Door Window Alarm,White
Aeotec ZWA012 Z-Wave Plus v2 Door / Window Sensor 7 Pro, Gen7 $47.99

Aeotec ZWA012 Z-Wave Plus v2 Door / Window Sensor 7 Pro, Gen7
Resideo Honeywell Home 7939WG-GY Door /Window Sensor $14.99

Resideo Honeywell Home 7939WG-GY Door /Window Sensor
SABRE Wireless Home Security Door Window Burglar Alarm, 120 dB Siren $24.51

SABRE Wireless Home Security Door Window Burglar Alarm, 120 dB Siren
Tuya 1-Pack Zigbee Door Window Sensor Burglar Alarm for Smart Home Security, White Plastic, Simple Setup $12.56

Tuya 1-Pack Zigbee Door Window Sensor Burglar Alarm for Smart Home Security, White Plastic, Simple Setup
10 Pack Wireless Door Window Alarm, Burglar Alert Sensor with Batteries, Loud Door Alarms for Kids Safety, DIY for Home Security, Office Protection,Shopping Store Was $30.89

10 Pack Wireless Door Window Alarm, Burglar Alert Sensor with Batteries, Loud Door Alarms for Kids Safety, DIY for Home Security, Office Protection,Shopping Store
Interlogix TX-E201 Wireless Door/Window Sensor $38.99

Interlogix TX-E201 Wireless Door/Window Sensor
Sensative 11010321 Strips Guard Z-Wave 800 Door/Window Sensor, with Magnet $36.99

Sensative 11010321 Strips Guard Z-Wave 800 Door/Window Sensor, with Magnet
iHome Wi-Fi Battery Powered Door Window Sensor $41.50

iHome Wi-Fi Battery Powered Door Window Sensor
10 Pcs Door and Window Alarm, 90 dB Wireless Magnetic Security Sensor Alarms with Batteries for Home, Apartment, Office and Garage, White

10 Pcs Door and Window Alarm, 90 dB Wireless Magnetic Security Sensor Alarms with Batteries for Home, Apartment, Office and Garage, White
Matter Thread USB Smart Door/Window Sensor,Home Security and Automatical, Burglar Alert, Works with Apple HomekitAlexa, Google Home,Home Assistant,App and Voice Control. $27.00

Matter Thread USB Smart Door/Window Sensor,Home Security and Automatical, Burglar Alert, Works with Apple HomekitAlexa, Google Home,Home Assistant,App and Voice Control.
Zigbee Smart Vibration Sensor,Real Time Monitoring,Door Window Vibration Detection Siren for Home,App Remote Control,1 * Vibration Sensor 1 * English instruction manual,White $12.89

Zigbee Smart Vibration Sensor,Real Time Monitoring,Door Window Vibration Detection Siren for Home,App Remote Control,1 * Vibration Sensor 1 * English instruction manual,White
FAQ
How do window sensors help protect my home?
Window sensors add an extra layer of security by alerting you when a window is opened or tampered with. Most use magnetic contacts—when the window opens, the circuit breaks and triggers an alarm or sends a notification. This can help deter unwanted entry and give you peace of mind, especially when you're away. Many models work wirelessly and can be paired with smart home systems for real-time alerts on your phone. For best results, install sensors on accessible windows and check batteries regularly to keep your system running smoothly.
Can I install these sensors myself?
Yes, most window sensors are designed for easy DIY installation. Typically, you'll just need to clean the window frame, peel off the adhesive backing, and stick the sensor and magnet in place—one on the window and one on the frame. Some models may require basic tools for mounting. Always follow the included instructions for your specific sensor. If your sensor connects to Wi-Fi or an app, you'll usually need to pair it using your smartphone. If you run into issues, customer support or online guides can offer extra help.
Do window sensors work with smart home apps?
Many modern window sensors are compatible with popular smart home apps. If your sensor is Wi-Fi enabled, you can often connect it to an app for real-time alerts, remote monitoring, and integration with other smart devices. Some sensors work with voice assistants, letting you check status or receive notifications hands-free. Be sure to check the product details to confirm compatibility with your preferred app or smart home system. Setup usually involves downloading the app and following pairing instructions provided by the manufacturer.
What should I do if my sensor stops working?
If your window sensor isn't working, start by checking the batteries—many issues are caused by low or dead batteries. Next, make sure the sensor and magnet are properly aligned and securely attached. If it's a wireless or smart sensor, confirm it's connected to your Wi-Fi or app. Sometimes, resetting the device or re-pairing it can resolve issues. If problems persist, consult the user manual or reach out to customer support for troubleshooting tips. Regular maintenance can help keep your sensors reliable.
Are these sensors good for apartments or rentals?
Window sensors are a great option for apartments and rentals because most models are wireless and use adhesive backing, so you don't need to drill holes or make permanent changes. They're easy to install and remove when you move out. Plus, they can help you feel more secure in your space without requiring landlord approval. Just remember to follow the installation instructions and check with your property manager if you have any concerns about adding security devices to your windows.
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