The alarm actually works—heard it go off during testing and nearly jumped out of my skin.
★ Bestseller🇨🇦 Canada's Favorite
Door Wedge Security Alarm with 120dB Siren – Portable Entry Alert for Travel, Hotels & Home | Thomler
$49.95 CAD
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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.
1
Start your return
Email us at info@thomler.com with your order number and reason for return.
2
Send it back
Pack the item carefully and ship it to our return address.
3
Get your refund
Once we receive it, we process your return and refund you within 5 business days.
Made for everyday
Practical pieces you’ll actually use.
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Door Wedge Security Alarm with 120dB Siren – Portable Entry Alert for Travel, Hotels & Home | Thomler
Sale price$49.95
Regular price
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★ Bestseller🇨🇦 Canada's Favorite
Door Wedge Security Alarm with 120dB Siren – Portable Entry Alert for Travel, Hotels & Home | Thomler
Sale price$49.95
Regular price
THE THOMLER EXPERIENCE
What Our Customers Say
Discover what makes THOMLER special.
Love that it wedges doors shut even when the alarm is off. Two tools in one.
Fits perfectly in my travel bag without taking up much room at all.
I've tried other door alarms before, but this one feels more solid underneath the door. The rubber base doesn't slip around on tile, and the sensitivity settings are genuinely useful for different situations.
Staying in an older apartment building where the locks aren't great, so having this gives me peace of mind without drilling holes or annoying my landlord. Works on my bedroom door just fine.
The stainless steel faceplate looks like it'll hold up to regular travel, and I appreciate that a standard 9-volt battery powers it instead of some proprietary cartridge I'd have to hunt down on the road.
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A note from our team
Shopping for your home shouldn't feel like a gamble.
Too many products look great online and disappoint when they arrive. That's why we only pick pieces we'd happily put in our own homes.
Not right for you? Send it back within 30 days, no hassle. And when you email us, a real person from our small team answers.
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Need To Know
Frequently Asked Questions
How much is shipping?
Shipping is free across the United States — on every order, with no minimum.
When will my order ship?
Orders placed today are dispatched the next business day. You'll get a tracking link by email as soon as it's on the way.
What's your return policy?
Not happy? You can return your item within 30 days. Just email us and we'll walk you through it.
Is checkout secure?
Yes. Every order is protected with SSL-encrypted checkout, and you can pay with all major cards, Apple Pay, Google Pay, Shop Pay and PayPal.
Can I track my order?
Absolutely — the moment your order ships, we email you a tracking link so you can follow it every step of the way.
My item arrived damaged or wrong — what now?
We're sorry! Email info@thomler.com with your order number and a photo, and we'll make it right.
Are your products backed by a guarantee?
Yes. Every product is covered against manufacturing defects, and comes with our money-back guarantee if it's not right for you.
Can I change or cancel my order?
Yes — you can change or cancel within 6 hours of placing your order. Just email info@thomler.com and we'll take care of it.