Glass Break Alarm 100dB 2-Pack — Vibration Sensor Detection, 30-Second Siren, Peel-and-Stick Installation, Auto-Reset, Button Cell Batteries Included, White
$15.00
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- Vibration sensor triggers on any impact — hitting, knocking, or breaking glass
- 100dB siren sounds for 30 seconds then automatically resets for continued protection
- Peel-and-stick adhesive installation — no tools, no wiring, sets up in seconds
- Compact 2.5" x 0.75" design mounts directly on any window or glass surface
- Two alarms included with button cell batteries installed and ready to go
Instant Alert When Glass Is Compromised
A locked window means nothing if someone can break through it undetected. These glass break alarms add an active defense layer — the moment glass takes an impact, a 100dB siren fires and keeps going for 30 seconds. That is enough noise to alert the household and send an intruder running.
Who This Glass Break Alarm Is For
Homeowners who want perimeter security on ground-floor windows without investing in a full alarm system. Renters who need a no-damage, removable security solution. Small business owners protecting storefront windows or display cases after hours.
Parents securing sliding glass doors and low windows accessible to the ground level. Anyone who recognizes that a locked window only stops honest people — a vibration alarm stops the rest.
Is This the Right Choice for You?
Choose the Glass Break Alarm if you want:
- Immediate 100dB alert when any window or glass surface is disturbed
- Peel-and-stick installation with zero tools or wiring
- Affordable perimeter coverage with two units per pack
Consider something else if you need:
- Coverage for doors and windows without glass (magnetic alarms work better)
- A louder alarm over 100dB for larger properties
How the Vibration Sensor Works
Unlike sound-based glass break detectors that wait for the specific frequency of shattering, these alarms use a vibration sensor that responds to any physical impact on the glass surface. A hard knock, an attempted pry, or an outright break all trigger the alarm immediately. This means you get earlier detection — before the glass actually gives way.
The 100dB siren sounds for approximately 30 seconds, then the alarm automatically resets itself and returns to armed mode. No manual intervention needed. It stays ready to detect the next threat without you touching it.
Quick Comparison: How Does a Glass Break Alarm Stack Up?
| Feature | Glass Break Alarm | Magnetic Door/Window Alarm | Motion Sensor | Security Camera |
|---|---|---|---|---|
| Detection Type | Vibration on glass ✔ | Magnetic separation | Movement | Visual recording |
| Alert Volume | 100dB ✔ | 90-120dB | Varies | Silent/notification |
| Installation | Peel-and-stick ✔ | Peel-and-stick ✔ | Mounting required | Mounting + wiring |
| Cost per Unit | Under $10 ✔ | Under $10 ✔ | $15-40 | $30-200+ |
| Coverage Area | Single window/pane | Single door/window ✔ | Room-wide ✔ | Room-wide ✔ |
| Best For | Glass surfaces | Doors and windows | Interior rooms | Surveillance |
Practical Details
Dimensions: 2.5″ x 0.75″. Weight: 0.2 lbs per unit. Color: white. Powered by three 1.5V LR44/AG13 button cell batteries (included). On/off switch for arming. Adhesive mount included — no tools required. Two alarms per package. Manufactured by Safety Technology.
Cover your most vulnerable windows today — grab the Glass Break Alarm 2-Pack and add instant perimeter defense to your home.
Frequently Asked Questions
Will the alarm trigger from normal vibrations like wind or a ball hitting the window?
The vibration sensor is calibrated to detect impact-level force, not minor vibrations from wind or gentle contact. A deliberate hit, knock, or break attempt will trigger it, while everyday occurrences generally will not. If you live in a high-wind area, test placement before committing the adhesive.
How long do the batteries last?
The included LR44/AG13 button cell batteries provide months of standby protection under normal use. The alarm draws minimal power in armed mode and only uses significant battery during the 30-second siren activation. Replacement batteries are inexpensive and widely available.
Can I reposition the alarm after sticking it to a window?
The adhesive is designed for a permanent hold, so repositioning may require new adhesive. Clean the glass surface thoroughly before initial placement and choose your window carefully. Each alarm works on one pane, so use both units on your two most vulnerable windows.
| Manufacturer | Safety Technology |
|---|---|
| Color | White |
| Decibles | 100 db |
| Battery | Three 1.5V LR44/AG13 Button Cell (Included) |
| Weight | 0.2 lbs |
| Dimensions | 2 ½” x ¾” |
Additional information
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