Door and Window Security sensors

Door & Window Security Sensors

Protect the most vulnerable areas of your home with smart door and window security sensors. These discreet door and window contact sensors detect the moment a door or window opens, sending instant alerts and triggering your alarm system. Whether it’s a window alarm contact in a bedroom or a door alarm contact at your entryway, these entry point security sensors help stop intruders before they ever step inside. With reliable wireless technology and professional installation, you get fast response, real-time notifications, and peace of mind knowing every entry point is monitored.

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Door & Window Contact Sensors at a Glance

Door and window security sensors, also called door and window contact sensors, protect your home by detecting when an entry point opens unexpectedly. These wireless sensors use magnetic contact technology to monitor doors, windows, sliding glass doors, and other vulnerable access points. When a sensor separates, it triggers an alert and immediately notifies both the homeowner and ADT’s 24/7 monitoring centers.

Common real-world threats include burglars forcing sliding doors, intruders lifting windows during the day, and break-ins through side garage doors. Entry point security sensors provide instant detection and rapid response, making them one of the most effective and affordable ways to prevent unauthorized entry. These sensors integrate seamlessly with your home security system and support smart home automations for added safety.

Why Homeowners Love These Sensors

instant alerts with door and window security sensors

Instant Alerts When Doors or Windows Open

Get instant alerts the moment a door or window opens. Your smart door and window contacts notify you right away, giving you real-time awareness of every entry point in your home. With ADT-monitored protection, you’ll stay informed and secure whether you’re home or away.

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wireless door and window security sensors

Wireless Design for Clean, Discreet Installation

The wireless design allows for a clean, discreet installation that blends seamlessly into your doors and windows. Your smart contact sensors stay hidden while delivering reliable, secure performance throughout your home. With professional ADT authorized installation, you get a polished look and dependable protection without drilling or messy wiring.

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tamper proof door and window security sensors

Tamper-Protected For Added Security

Each contact sensor is tamper-protected for added security, ensuring no one can disable or remove it without triggering an alert. This smart safeguard keeps your door and window sensors reliable, stable, and fully monitored at all times. With ADT-backed technology and professional installation, your home stays protected even against attempts to interfere with the system.

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stop break in with door and window security sensors

Helps Stop Break-Ins Before They Happen

Early detection helps stop break-ins before they happen by alerting you the moment a door or window is opened. These smart contact sensors act as the first line of defense, securing entry points around your home. With ADT monitored protection and professional installation, your system responds instantly to suspicious activity, keeping your home and family safe around the clock.

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Why Door and Window Security Sensors Matter

Door and window security sensors are the first line of defense in any home protection system. It essential to secure every door and window in your home. These sensors immediately detect when an entry point opens, triggering your alarm and sending alerts to your phone and monitoring center. With reliable door and window security sensors in place, you can stop intruders before they enter, protect your family while you sleep, and get peace of mind whether you’re home or away.

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wireless door and window contact - ADT monitored

Features

  • SIX Two-WayWireless Technology employs true, 128-bit AES encryption for a high level of security
  • Low-maintenance design with extended battery performance for worry-free protection.
  • Tamper detection alerts you immediately if someone attempts to remove or disable a sensor.

Specifications

  • Connectivity – Wired and wireless options
  • Battery Type – CR123 battery
  • Dimensions – 3-1/16″ H x 1-9/16″ W x 1-3/16″ D (77.8mm x 39.7mm x 30.2mm)
  • Agency approval – UL Listed

Guidelines for installation

Real World Break-In Scenarios and How Door & Window Security Sensors Prevent Them

Break-ins don’t always happen the way homeowners expect. Most burglars look for unlocked doors, weak window frames, or quiet entry points that can be forced open without drawing attention. That’s why door and window security sensors are one of the most important layers of protection in any home. A professionally installed contact sensor immediately detects when a protected entry point opens unexpectedly. Whether you’re asleep, at work, or on vacation, door and window contact sensors alert you and ADT monitoring centers the moment someone tries to enter your home. Here are real-world situations where entry point security sensors make all the difference:

Sliding glass doors are one of the most common break-in targets in South Florida because they’re often covered by blinds and hidden from the street. A window alarm contact instantly detects the door being opened, triggering the system before the intruder ever steps inside and sending alerts directly to ADT.

Older homes may have windows that are easier to force open with minimal noise.
Strong window alarm contacts detect even slight separation, catching an attempted break-in early and giving ADT monitoring centers time to respond quickly.

Many burglars avoid front entrances and instead target side garage doors, knowing they’re easier to pry open. A door alarm contact on this entry point activates the moment the door begins to separate from the frame, alerting you and dispatching help even if you’re away.

Not every alarm is caused by a criminal. Kids, guests, or contractors sometimes leave a door cracked open. With wireless door and window contacts, you receive immediate alerts when a protected door is left open, helping prevent unwanted entry, pets escaping, or AC loss in hot weather.

Daytime break-ins often occur through back windows when homeowners are at work.
Wireless door and window contacts detect the window opening instantly, sending real-time mobile alerts and triggering the alarm, even if the intruder believes no one is home.

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Door & Window Contacts FAQs

Yes, you can arm your system in “Stay Mode,” allowing entry point security sensors to protect doors and windows while you move freely inside.

Yes, you’ll receive real-time notifications anytime a protected door or window opens.

Absolutely, door alarm contacts work on sliders, french doors, side doors, garage entry doors, and more.

Yes. Our door and window security sensors continue to protect your home even during a power outage. Your system includes backup power, and wireless sensors remain active to alert you to any entry point being opened.

No, door alarm contacts and window alarm contacts only activate when the door or window is physically opened. They do not detect motion, so pets walking by will not trigger them.

Very little maintenance is required. The system will notify you if a battery runs low or a door and window contact sensor needs attention. Our system come with a lifetime warranty and includes battery replacement when needed.

Explore Additional Home Safety & Security Devices

Now that you’ve learned how door & window contacts keep your home and family safe, consider enhancing your protection with other smart security products. All devices integrate seamlessly with your Protect Pros system and can be added to any package for complete coverage.