Magnetic Door & Window Alarm – 90dB, 2-Pack

Most break-ins don’t happen the way you see in the movies — loud and dramatic. They happen in the quiet. A sliding glass door eased open two inches. A back window lifted just enough. The intruder is counting on you being asleep and staying that way. The Magnetic Door & Window Alarm changes that calculation the moment those two magnetic contacts separate, because 90 decibels of siren is not something anyone sleeps through.

Who This Door & Window Alarm Is For

This 2-pack was built for people who need real protection without a renovation project. Renters who can’t put holes in walls. Ground-floor apartment tenants who feel every footstep outside. Seniors living alone who want something simple they can set up themselves and trust from day one. Parents who want to know the second a teenager slips out the back door after midnight. Anyone who has been looking at that unlocked slider in the back room for six months, telling themselves they’ll deal with it — this is how you deal with it. Tonight.

Is It the Right Fit for You?

Choose It If You Want

• Instant protection with zero installation time — peel, stick, done
• A solution that works in a rental without damaging walls or frames
• Two covered entry points for the price of a fast-food lunch
• No app, no Wi-Fi, no subscription — just a siren that fires when it needs to

Consider Another Option If You Need

• Remote monitoring or smartphone alerts when you’re away from home
• A system that logs entry history or integrates with a smart home hub
• Coverage for more than two points without buying additional packs

Magnetic Door & Window Alarm Features and Benefits

• 90-Decibel Siren: That’s roughly the volume of a power saw running at close range. Loud enough to startle an intruder hard and wake every person in the home at the same time.
• Instant Magnetic Trigger: The alarm fires the moment the two magnetic pieces separate — door from frame, window from sill. No delay, no grace period for someone to slip inside quietly.
• Peel-and-Stick Mount: Adhesive backing goes onto smooth painted wood, metal frames, or vinyl window tracks in under two minutes. No tools. No drilling. No damage to your deposit.
• Works on Doors, Windows, and Sliders: Covers the three entry points an intruder tests first. One pack handles your sliding glass door and a ground-floor window simultaneously.
• Batteries Included: Three 1.5V LR44/AG13 button cell batteries come in the box. You’re protected the same day it arrives — no extra trip to the store.
• 2-Pack at $13: Two independent units, two vulnerabilities covered, one straightforward price.
• 1-Year Warranty: Backed for a full year so you’re not left on your own if something goes wrong.

How the Magnetic Door & Window Alarm Compares

Here’s how this alarm stacks up against two common alternatives people consider for entry-point security.

Care and What’s Included

What’s in the Box

• Two magnetic door and window alarm units (white)
• Three 1.5V LR44/AG13 button cell batteries — preinstalled and ready
• Peel-and-stick adhesive backing on each unit

Care

Mount on clean, dry surfaces for the strongest adhesive hold. Wipe the frame or sill with a dry cloth before pressing the unit into place and give it a few minutes to set before testing. The compact housing — 2½ inches by 1¾ inches by ¾ inch, weighing 0.2 lbs per unit — keeps a low profile on any frame. Replace batteries when the siren sounds noticeably quieter than usual.

Magnetic Door & Window Alarm: Frequently Asked Questions

How loud is the Magnetic Door & Window Alarm?

It sounds at 90 decibels — comparable to a power saw or a motorcycle at close range. That’s loud enough to startle someone mid-entry and wake people sleeping in other rooms. The goal isn’t just to alert you; it’s to make staying inside that door or window a very uncomfortable choice for whoever opened it.

Does the Magnetic Door & Window Alarm work on sliding glass doors?

Yes. The peel-and-stick design works on sliding glass doors, standard hinged doors, and windows — including double-hung and casement styles. One half mounts to the moving part, the other to the fixed frame. When they separate by even a small amount, the alarm fires. No gap is a safe gap.

Do I need any tools or a professional to install this alarm?

Not at all. There’s no wiring, no drilling, and no screws. The adhesive backing peels off and sticks directly to the frame and the door or window. Most people have both units mounted and tested in under five minutes. That’s the whole point — protection that doesn’t ask anything complicated of you.

How long do the batteries last in this alarm?

The three included LR44/AG13 button cell batteries are ready to use straight out of the box. Standby life depends on how often the alarm is triggered, but under normal residential use they’re designed to last through extended daily use. Replacement batteries are inexpensive and widely available at any drugstore or dollar store.

Add This Alarm to Your Home Tonight

Two entry points. One peel-and-stick install. Ninety decibels of deterrent ready before you go to sleep. Pick your pack, add it to your cart, and rest a little easier knowing that quiet in your home is yours to keep.