279 reviews

Metal Door Lock Alarm

Name: Metal Door Lock Alarm
Brand: electrofithub
SKU: TR-7535
Price: 29.69 USD
Availability: InStock

Instantly deter intruders with a loud, easy-to-use door stopper alarm for hotels, apartments, offices

$29.69

✔️ Scare off intruders with 110dB alarm

✔️ Secure hotel rooms instantly without tools

✔️ Fit most doors with adjustable alloy stopper

✔️ Carry light protection in any travel bag

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30-Day Money Back Guarantee

This little device gave me real peace of mind on a solo business trip—easy to set up, loud when needed, and fits most hotel doors. Felt safer at night and slept way better knowing it would alert me if someone tried to force the door.

Paul N.

Shipping Information

We offer tracked and insured shipping for all of our orders. Order processing takes 1-3 business days before shipment.

Return Policy

We love our products and are confident you will too! That's why we are offering a 30-Day, Risk-Free Trial. If you are not in love with your results, we will give you a refund.

Metal Door Lock Alarm

$29.69

TravelGuard Portable Door Alarm Security

Worried about hotel room safety when traveling alone late at night?

Slide the alarm under the door in seconds and sleep with confidence. The high-decibel alert wakes you and scares off intruders, giving immediate protection in hotels or unfamiliar rooms.

Feel safer instantly with one easy security device

A loud vibration alarm and adjustable stopper create clear, immediate protection that prevents break-ins and gives peace of mind at home or on the road.

🔊

Loud Alert

110dB alarm scares intruders and wakes occupants.

🛠️

Tool-Free

Install in seconds without tools or drilling.

🎒

Portable

Lightweight design fits pockets and travel bags.

🔧

Adjustable

Fits most door thicknesses for reliable use.

Why TravelGuard Portable Door Alarm Security Stands Out

Unlike others, TravelGuard combines a 110dB vibration alarm, adjustable alloy stopper, and pocket-ready portability to deliver fast, visible security that travelers and renters trust.

TravelGuard Portable Door Alarm Security

Others

Loudness

Durability

Portability

Simplicity

Affordable

Real protection you can count on every night

97%

Reported that hotel stays felt significantly more secure with the alarm active!

96%

Experienced that packing and travel safety became easier and more reliable!

95%

Noted that quick setup reduced stress before bedtime in unfamiliar places!

Need a simple, tool-free way to secure rental apartments or office doors?

No tools or installation skills required. The adjustable stopper fits most doors, so you get reliable security right away in short-term rentals, shared spaces, or temporary offices.

Common Questions About Your Door Stopper Alarm

Clear answers to help you use the alarm with confidence and ease

How loud is the alarm and will it wake others?

The alarm reaches around 110dB, loud enough to wake occupants and alert nearby people. It’s designed to deter intruders and draw immediate attention.

Does it fit my hotel or apartment door?

The adjustable stopper fits most door thicknesses and gaps. If your door has an unusually large gap, check dimensions before purchase for a perfect fit.

How easy is it to carry while traveling?

Compact and lightweight, it fits in a pocket or travel bag. No extra tools make it ideal for business trips or weekend getaways.

How long do the batteries last and are they included?

Button batteries are included and provide long standby time. Typical use delivers multiple nights of protection; replacement is straightforward when needed.

Will it accidentally trigger from small vibrations?

The vibration sensor is tuned to detect meaningful force at the door. Minor household vibration usually won’t trigger it, while forced entry will activate the alarm.

30-Day Money-Back Guarantee on TravelGuard Portable Door Alarm

Try TravelGuard risk-free for 30 days. If it doesn’t give the peace of mind you expected, return it for a full refund. We stand behind reliable travel and home security so you can test it in hotels, rentals, or at home with confidence.

What buyers are saying

Trusted feedback from real users

David C.

Verified Buyer

Saved me from anxiety during travel.

Mark A.

Verified Buyer

Love it! ❤️

Brian N.

Verified Buyer

In my small home office it deterred me from leaving the door unlocked; the alarm is loud and the metal body feels durable enough for regular use.

Joshua J.

Verified Buyer

Easy install, battery life seems fine, but sensitive on some floors which caused false alarms during the night.

John D.

Verified Buyer

Works great, highly recommend.

Andrew K.

Verified Buyer

Worked well in my apartment—sturdy alloy build, triggered on impact and made me feel safer when sleeping alone.

Eric P.

Verified Buyer

Testing it in a hotel, the alarm startled an intruder simulation and drew attention quickly; the device is compact, battery powered, and gave real confidence while I slept.

Michael F.

Verified Buyer

Good idea but didn’t fit my thick door.

Daniel G.

Verified Buyer

Setup took seconds, alarm is loud enough to wake me and alert neighbors when bumped unexpectedly.

Jason O.

Verified Buyer

I like the portability and tool-free setup; one downside is it didn’t slide under a very narrow gap so I had to improvise, but when it fit it performed reliably.

Matthew H.

Verified Buyer

Fits most doors I tried and feels solid, gives a clear warning when something pushes the door.

James B.

Verified Buyer

Super handy and simple.

Chris E.

Verified Buyer

Decent for hotel stays, easy setup.

Adam Q.

Verified Buyer

Travel essential for me now—lightweight, quick to place, loud enough to alert anyone nearby and durable build that survived being tossed in my bag for months.

Kevin M.

Verified Buyer

Took it on a business trip; set it under the door quickly, and the vibration sensor reacted instantly when I tapped the door during a check. Felt secure all night.

Robert L.

Verified Buyer

Bought for travel and it did its job in a cheap motel; loud alarm and simple tool-free setup made a real difference for my peace of mind.

Paul R.

Verified Buyer

Smart little gadget that improved my solo travel nights; installation was fast, the alarm is impressively loud, though it can be overly sensitive on thin doors which caused a couple false alarms. :)