Window Security Alarms & Sensors

Glass Break Detection and Entry Alerts

Window security alarms using vibration sensors and magnetic contacts to detect break-ins, glass breakage, and unauthorized window opening. Battery-powered, adhesive installation requires no wiring or permanent modification.

Why Use Window Security Alarms?

  • Common Entry Point: 23% of burglars enter through first-floor windows
  • Early Detection: Alert to tampering before intruder fully enters home
  • Glass Break Detection: Vibration sensors detect window breakage attempts
  • No Wiring Required: Battery-powered sensors install in minutes with adhesive
  • Renter-Friendly: Remove without damage when moving
  • Affordable: Protect multiple windows for under $50

Window Security Products:

Door and Window Alarm ($8.95)

  • Magnetic contact sensor sounds alarm when window opens
  • 90dB siren alerts to intrusion
  • Adhesive installation on window frame and sash
  • Works on sliding windows, double-hung, casement windows
  • Battery-powered (batteries included or sold separately)
  • Also works on doors, cabinets, drawers

Window Vibration Alert ($14.95)

  • Detects vibration from glass breakage or window tampering
  • Sounds alarm before window is fully breached
  • Adhesive mounting directly on window glass
  • Adjustable sensitivity settings
  • Battery-powered vibration sensor
  • Alerts to attempted break-ins, not just successful entries

90 dB Window Door Sensors - 2 Pack ($12.95)

  • Two magnetic contact alarms per package
  • 90dB siren when window/door opens
  • Adhesive installation - no tools required
  • Secure multiple windows affordably
  • Battery-powered sensors
  • Works on windows and doors

3-in-1 Personal Safety Alarm with Light ($11.95)

  • Portable 130dB alarm can be mounted on windows
  • LED flashlight and strobe light included
  • Multi-purpose: window alarm, personal alarm, emergency light
  • Hang on window latch or mount with adhesive

Window Alarm Types Explained:

Magnetic Contact Sensors

How it works: Two-piece system - sensor on frame, magnet on window. When window opens, magnetic contact breaks and alarm sounds.

Best for: Detecting window opening - alerts when intruder enters

Limitation: Does not detect glass breakage if intruder breaks glass without opening window

Vibration Sensors

How it works: Detects vibration/shock from attempted break-in, glass tapping, or breakage. Sounds alarm immediately.

Best for: Early warning before entry - detects tampering and break attempts

Limitation: May trigger false alarms from strong wind, nearby construction, or loud noises (adjustable sensitivity helps)

Installation Instructions:

Magnetic Contact Sensors

  1. Clean window frame and sash with rubbing alcohol
  2. Attach sensor unit to window frame (stationary)
  3. Attach magnet to window sash (moving part) aligned with sensor
  4. Test by opening window - alarm should sound
  5. Adjust magnet position if needed for proper alignment

Vibration Sensors

  1. Clean window glass surface
  2. Attach sensor directly to glass pane with adhesive
  3. Adjust sensitivity dial (if available)
  4. Test by tapping glass - alarm should sound
  5. Fine-tune sensitivity to avoid false alarms

Best Uses for Window Alarms:

  • Ground Floor Windows: Most vulnerable entry points - protect all accessible windows
  • Basement Windows: Often overlooked but easy access for intruders
  • Sliding Windows: Magnetic sensors work well on sliding window tracks
  • Large Windows/Patio Doors: Glass break sensors for large glass surfaces
  • Bedroom Windows: Personal safety while sleeping
  • Vacation Homes: Alert to entry when property unoccupied
  • Rental Properties: Non-permanent security without landlord approval

Window Security Tips:

  • Secure all ground-floor and basement windows with alarms
  • Use vibration sensors on large glass surfaces (patio doors, picture windows)
  • Use contact sensors on opening windows (double-hung, sliding, casement)
  • Layer protection: contact sensor + vibration sensor for comprehensive coverage
  • Test alarms monthly to ensure battery function
  • Replace batteries annually or when low-battery indicator sounds
  • Add window locks or blocking bars for physical security in addition to alarms

How Many Window Alarms Do You Need?

  • Minimum: All ground-floor accessible windows (typically 4-8 windows)
  • Recommended: All ground-floor + basement windows (8-12 windows)
  • Comprehensive: All windows on accessible floors + second-floor near climbing access (12-20+ windows)
  • Budget Approach: Start with most vulnerable windows (front/back of house, hidden from street view)

TBOTECH Guarantee:

  • Fast shipping (free over $50)
  • 90-day satisfaction guarantee
  • No wiring or permanent installation
  • Renter-friendly products
  • Battery-powered convenience

Questions about which window alarm type is right for your windows? Contact us.

Door window alarm for kids stops sneaking out.
Personal Safety Alarm with Light—130 dB siren, strobe, flashlight. Multi-use for personal and property protection.
Window Vibration Alarm—100 dB siren, adhesive install, two units. Secures glass against break-ins.
Window Alarm Sensors—90 dB siren, adhesive install, two units. Secures doors and windows.
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