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Door Wedge Security Alarm with 120dB Siren – Portable Entry Alert for Travel, Hotels & Home | Thomler
A Door Wedge That Actually Fights Back
Most wedges just hold a door — this one screams if anyone tries to force it open. Slide the device beneath any hinged entry and turn it on. The moment pressure hits, a 120-decibel siren erupts, startling intruders and alerting you instantly. Between alarms, it functions as a solid rubber-backed stopper, keeping doors firmly in place without scratching floors. No mounting hardware, no permanent changes — just drop it, activate it, and go. Perfect for hotel stays, dorm life, rental properties, or adding a backup layer at home. Runs on a standard 9-volt battery (sold separately) and fits in a backpack or purse.
Why You Need This
- Instant Deterrent: A 120-decibel blast is loud enough to scare off anyone and wake an entire floor.
- Adjustable Sensitivity: Three settings let you tune the trigger — high for light sleepers, low for kids or pets moving around.
- No Installation Required: Works on carpet, tile, wood, or linoleum — slide it under the door and you're protected in seconds.
- Travel-Ready Size: Compact enough to toss in luggage yet heavy-duty enough to hold a door against serious force.
- Dual Function: Switch off the alarm and it still serves as a dependable wedge when you just need the door held open.
Built for Real-World Security
The body is molded from impact-resistant ABS plastic with a stainless steel faceplate for durability, and the base is lined with high-friction rubber to grip any surface. Whether you're traveling for work, securing a side door at home, or adding peace of mind to a college apartment, this device adapts to every scenario. Measures roughly 5.5 × 1.8 × 1.6 inches, weighs next to nothing, and resets with a single button press. You'll enjoy fast shipping across the United States and a 30-day return window if it doesn't meet your expectations.
Free shipping across the United States — always, with no minimum order.
Every order is carefully packed and sent with Track & Trace, so you can follow your package every step of the way.
Order today? We ship the next business day.
Not completely happy? You have 30 days to return your purchase.
On top of that, we offer a 3-year warranty against manufacturing defects — your investment is in good hands.
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Practical pieces you’ll actually use.
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- Hand-packed with care
- Checked before it ships
- Arrives exactly as pictured
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A Note From Our Founder
When I started Thomler, I wanted one thing — to make it easy to find pieces that actually make a home feel like yours, without the markup. Every item we carry is one I'd happily put in my own home. And if it's ever not right, you've got 30 days to send it back, no stress. I'm only ever an email away.