Glass Break Alarm 2-Pack – 100 dB, Adhesive Mount

That sliding glass door with the questionable lock. The basement window nobody thinks about. Ground-floor glass is where break-ins tend to start, and most people put off doing anything about it because they picture a security system, an installer, and a monthly contract. The Glass Break Alarm 2-Pack is none of that—just peel, stick, and you’re covered before the evening is over.

Who This Door and Window Alarm Is For

This is built for renters who can’t drill into frames or run wires through walls, and homeowners who want a fast, affordable second layer on top of existing locks. It’s equally practical for a vacation property, a college dorm, or a shared apartment where a full alarm system isn’t allowed or just isn’t worth the investment. If you need two specific entry points covered quickly and without a service call, this is the right fit.

Is It the Right Fit for You?

Choose It If You Want

• No-drill, adhesive installation that won’t damage walls, frames, or a security deposit
• Coverage for two entry points right out of the box, batteries included
• A vibration-triggered sensor that responds to impact, not just sound
• A discreet, low-profile unit that doesn’t draw attention to itself

Consider Another Option If You Need

• A monitored system that contacts emergency services automatically
• Magnetic contact sensors for interior doors that don’t involve glass
• A whole-home system tied to a central control panel

Glass Break Alarm 2-Pack Features and Benefits

• 100 dB vibration-triggered siren: Loud enough to startle an intruder and alert you or nearby neighbors—triggered by the physical shock of impact, which cuts down on false alarms from ambient noise.
• Adhesive mount: Sticks directly to glass or window frames with no drilling, no wiring, and no damage to surfaces—ideal for rentals and apartments.
• Batteries included: Three 1.5V LR44/AG13 button cells come pre-packaged with each unit, so there’s nothing extra to buy before you can install them.
• Two-pack coverage: Protect two entry points—a bedroom window and a back door, or two vulnerable windows on the same side of the house—for a single low price.
• Compact, low-profile design: At 2½” x ¾” and 0.2 lbs per unit, these mount discreetly and don’t stand out or invite interference.
• No wiring or installation tools needed: Setup takes minutes with no technical knowledge required and no installer to schedule.
• White finish: Blends with most window frames and trim so the alarm stays inconspicuous once mounted.

How the Glass Break Alarm 2-Pack Compares

Here’s how this unit stacks up against two common alternatives renters and homeowners typically consider.

What’s Included and Care Notes

What’s in the Box

Each 2-pack includes two alarm sensors, two adhesive mounts, and six LR44/AG13 button cell batteries—three per unit—so everything you need is in the package. No separate hardware trip required.

Care and Maintenance

Check the adhesive periodically, particularly in humid rooms or climates where moisture can weaken the bond over time. Test each unit with the built-in test button every few months. Plan to replace the batteries roughly once a year, or sooner if the test tone sounds noticeably weaker than usual.

Glass Break Alarm 2-Pack: Frequently Asked Questions

How does the Glass Break Alarm 2-Pack detect a break-in?

Each unit uses a vibration sensor that responds to the physical shock of glass breaking or a door being forced. This is different from a sound-activated sensor, which can trigger on loud noises from outside. By detecting impact directly, the alarm is less prone to false alarms from traffic, thunder, or neighborhood noise.

How loud is the Glass Break Alarm 2-Pack?

Each alarm sounds at 100 dB—loud enough to be disorienting at close range and audible from outside the room or through a wall. The intent is to startle an intruder and alert you or neighbors quickly. For context, that’s roughly the volume of a motorcycle engine passing nearby.

Can I use this in an apartment where I can’t drill into the walls?

Yes, and that’s exactly what it’s designed for. The adhesive mount attaches directly to glass or a window frame without any drilling, screws, or permanent hardware. When it’s time to move out, the mount removes cleanly and won’t damage the surface underneath—no security deposit issues.

How long do the batteries last in each alarm?

With normal standby use, the three LR44/AG13 button cells in each unit typically last around a year. Use the test button periodically to confirm they’re holding charge. When the tone sounds noticeably weak during testing, it’s time to swap in fresh batteries—replacements are widely available at hardware and grocery stores.

Add Simple Window and Door Protection Today

Two entry points, two alarms, no wiring, and no waiting for an installer—it’s a straightforward upgrade that takes less time than it does to think about it. Pick your quantity, add to cart, and have them mounted before tonight.