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

Most break-ins don’t announce themselves. A door eased open while the house is asleep, a slider slipped off its track in the back — that’s the real threat, and it happens fast. The Magnetic Door and Window Alarm is built for exactly that moment: the instant that gap between door and frame breaks, a 90dB siren fires and the whole house knows. Two alarms, thirteen dollars, thirty seconds to install. That’s the deal.

Who This Door Alarm Is For

This one’s a natural fit for renters who can’t put holes in a landlord’s walls, parents who want to know if a bedroom window opens at 2am, and anyone with a sliding glass door off the back patio that makes them uneasy at night. It’s equally useful for elderly folks living alone who want a simple alert on any door that shouldn’t be opening, and for travelers who want an extra set of ears on a hotel room or Airbnb entry door. If you want no-nonsense coverage without a contract or a technician, this is your product.

Is It the Right Fit for You?

Choose It If You Want

• An alarm you can install in under a minute with zero tools
• Instant entry alerts with no app, no Wi-Fi, and no monthly fee
• Portable protection you can take to a hotel or move between rooms
• A budget-friendly way to cover two entry points right now

Consider Another Option If You Need

• Remote phone alerts when you’re away from the property
• Video recording of who triggered the alarm
• A professionally monitored system covering an entire home

Magnetic Door and Window Alarm Features and Benefits

• 90dB Siren: Loud enough to startle an intruder and wake up the household — that’s roughly the level of a car horn heard up close.
• Instant Magnetic Trigger: The alarm fires the moment the gap between the sensor and magnet breaks, with no delay and no missed openings.
• Peel-and-Stick Mount: Adhesive backing sticks to wood, metal, and most painted surfaces — no drilling, no screws, no damage to trim or frames.
• Batteries Included: Three 1.5V LR44/AG13 button cells come loaded in each unit, so you can install and test immediately out of the box.
• Works on Doors, Windows, and Sliders: The compact 2½” x 1¾” x ¾” profile fits standard entry doors, single- and double-hung windows, and sliding glass doors.
• 2-Pack Value: Cover a front door and a back slider, or a bedroom window and a garage entry — two real vulnerability points for one low price.
• 1-Year Warranty: Backed for a full year, so if something’s off right out of the gate, you’re covered.

How the Magnetic Door and Window Alarm Compares

Here’s how this alarm stacks up against two common alternatives shoppers consider.

Care and What’s Included

What’s in the Box

• 2 magnetic door and window alarm units (white)
• Peel-and-stick mounting adhesive on each unit
• Batteries pre-installed — three 1.5V LR44/AG13 button cells per alarm

Care and Maintenance

Give each alarm a quick test once a month — just open the door or window it’s mounted on and confirm the siren sounds strong. If the tone sounds weak or slow to trigger, it’s time for a fresh set of LR44/AG13 batteries. The adhesive holds firm on clean, dry surfaces; if you ever need to reposition an alarm, clean the surface before reapplying.

Magnetic Door and Window Alarm: Frequently Asked Questions

How loud is the Magnetic Door and Window Alarm?

Each alarm sounds at 90 decibels — a level that’s genuinely disruptive in an enclosed space and loud enough to wake most people in an adjacent room. That’s the whole point: an intruder doesn’t get a quiet entry, and anyone inside the home gets an immediate heads-up. The compact size doesn’t soften the sound one bit.

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

Yes. The magnetic contact design works on sliding doors the same way it works on hinged doors and standard windows. Mount the sensor body on the door frame and the magnet on the sliding panel itself. When the slider moves and the two pieces separate, the siren triggers immediately.

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

Not at all. Each unit has peel-and-stick adhesive already on it. Clean the surface, peel the backing, press it into place, and you’re done in under a minute. No screws, no drill, no electrician, and nothing to wire into your home’s electrical system. Batteries come installed, so it’s ready to test the moment you put it up.

Can I take these alarms with me when I travel?

Absolutely — that’s one of the best uses for them. They’re small, lightweight at 0.2 lbs each, and the peel-and-stick mount works on most hotel door and window frames. If the alarm sounds while you’re in the room, you’ll know immediately. Just pack them in your bag and reapply at each stop. Carry a spare set of LR44/AG13 batteries if you’re on a longer trip.

Add These to Your Home or Travel Bag Today

Two entry points covered, no tools, no fees, no hassle — the Magnetic Door and Window Alarm is about as close to instant peace of mind as you can get for thirteen dollars. Pick your spots, peel and stick, and you’re protected tonight. Add them to your cart now and get them working before the week is out.