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

You don’t always need a complicated system to add a meaningful layer of protection to your home. Sometimes the right answer is something you can install in under a minute, on any door or window, without tools or a technician. That’s exactly what the Magnetic Door and Window Alarm delivers — a straightforward alert that lets you know when an entry point opens, whether you’re asleep, working from home, or keeping an eye on kids near a back door.

Who This Door and Window Alarm Is For

This alarm works well for renters who can’t make permanent modifications to their space, apartment dwellers adding a first layer of security, parents who want to know when a door opens while kids are home, seniors living alone who want immediate awareness if an entry point is disturbed, travelers who want a simple deterrent on a hotel room door, and homeowners looking for an affordable way to cover secondary entry points like sliding glass doors or garage side doors.

Is It the Right Fit for You?

Choose It If You Want

• A fast, no-drill install on any smooth surface
• Immediate 90dB audio alert when a door or window is opened
• An affordable way to cover multiple entry points with one purchase
• A portable option you can take with you when you travel

Consider Another Option If You Need

• A connected system that sends alerts to your phone when you’re away from home
• A monitored security service with professional response
• An alarm with a silent or delayed mode for routine use

Magnetic Door and Window Alarm Features and Benefits

• 90dB Siren: Loud enough to wake you up and startle an intruder — comparable to a lawn mower at close range, in a small package.
• Magnetic Trigger: The two-piece design separates when the door or window opens, instantly activating the alarm with no buttons to press.
• Peel-and-Stick Install: Adhesive backing means no drilling, no screws, and no damage to walls, frames, or rental surfaces.
• Works on Doors, Windows, and Sliders: Flat surfaces on most standard entry points — including sliding glass doors — are compatible with this design.
• Batteries Included: Three 1.5V LR44/AG13 button cell batteries come in the box. Install and you’re done.
• Compact Size: At 2½” x 1¾” x ¾” and 0.2 lbs, each unit stays out of the way and fits on narrow window frames without any trouble.
• 2-Pack: Two alarms in one purchase so you can cover a front door and a back window, or any two entry points that matter most to you.

How the Magnetic Door and Window Alarm Compares

Here’s a quick look at how this alarm stacks up against two common alternatives.

Care and What’s Included

What’s in the Box

• Two magnetic door and window alarm units
• Three 1.5V LR44/AG13 button cell batteries (pre-installed or included)
• Peel-and-stick adhesive backing on each unit

Care

Wipe each unit with a dry cloth if needed. Avoid exposing the adhesive backing to moisture before mounting. When batteries run low and the alarm tone weakens, replace them with standard LR44 or AG13 button cells, available at most hardware and grocery stores. Each unit carries a 1-year manufacturer’s warranty.

Magnetic Door and Window Alarm: Frequently Asked Questions

How loud is the Magnetic Door and Window Alarm?

Each unit sounds at 90 decibels — loud enough to be heard clearly through interior walls and across a small home or apartment. That level of sound is startling up close, which is the point. It’s designed to alert you and discourage someone who didn’t expect noise.

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

Yes. The peel-and-stick design works on the flat surfaces of sliding doors and their frames, as long as the surface is smooth and clean before you apply the adhesive. It’s one of the most common uses for this type of alarm.

How do you install the alarm?

Peel the backing off the adhesive strip, press one piece onto the door or window and the other onto the frame, and align them so they sit close together when the entry point is closed. When the door or window opens, the two magnetic pieces separate and the siren activates. No screws, no drilling, no wiring.

Can I use this alarm when I travel?

Yes, and that’s one of the reasons people buy the 2-pack. The units are small and light enough to drop in a bag. In a hotel or short-term rental, you can stick one on the main door to add an immediate alert if someone opens it while you’re inside. The adhesive is designed for a secure hold on smooth surfaces.

Add This Door Alarm to Your Home Today

Two alarms, simple install, and no ongoing costs — it’s a practical first step or a solid addition to what you already have in place. Pick up the Magnetic Door and Window Alarm 2-pack and put a little more awareness between your family and an unwanted surprise.

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