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DoorJammer

DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design 2Pack

Based on 25 reviews
Condition: New
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$45.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 29 – Oct 30
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At a glance

Condition
New
Size
DJ3 - Travel Size 2 Pack
Set
2 Pack
Model
DJ3-2P
Dimensions
2.76"L x 1.57"W x 4.25"Th
Color
DJ3 - DoorJammer (Standard)
Mounting Type
Under Door Mount
In the box
Bag

Features 5

  • Maximum Vertical Clearance Required: Ensure proper installation with a vertical clearance of at least 0.25 (1/4) inches and no more than 1.5 inches between the door and floor. Ideal for inswing doors with 3mm clearance, it includes a three-size spacer keyring set for a perfect fit.
  • Easy Installation: No tools required! Simply position the DoorJammer below the handle, insert it under the door, and twist the screw clockwise for a secure fit. Quick-release feature allows for immediate removal by pulling upwards in emergencies.
  • Suitable for Doors Weighing Up to 100lbs: Perfect for a range of door types, including interior, hotel, and travel doors. Designed to securely anchor to surfaces like tile, laminate, and carpet, providing reliable protection in any setting.
  • Portable & Compact Design: Lightweight (227g) and compact (4.5 x 3.5), the DoorJammer is easy to carry and store. Comes with a durable neoprene extension foot for extra grip on thick carpets, making it ideal for travelers and home use.

Description

The Original Design Since 2013, DoorJammer provides proven security trusted by thousands for travel, home, and more. Independently Verified The only portable door security device independently tested to ensure maximum strength and safety. Award-Winning Security Easy-to-install, patented design provides reliable security without tools or permanent modifications Quick Release Feature Developed with emergency services, it features a Quick Release for fast removal in urgent situations Trusted Worldwide DoorJammer is trusted and featured by top media outlets like BBC, Megyn Kelly Today, and more. How can I ensure that the DoorJammer DJ3 will fit my door? To ensure a proper fit, measure the gap between the bottom of your door and the floor. The clearance must be at least 0.25 inches (1/4”) and no more than 1.5 inches. The DoorJammer DJ3 is designed for inswing doors with a minimum of 3mm clearance. Can DoorJammer DJ3 secure all door types? The DoorJammer DJ3 secures inswing doors up to 100lbs, perfect for interior, travel, and hotel doors. It’s NOT compatible with outward-opening doors. For doors over 100lbs, consider the DoorJammer DJ4 Lockdown for enhanced security. Can I use DoorJammer DJ3 on all floor types? Yes! The DoorJammer DJ3 works on most flat surfaces, including tile, laminate, wood, and carpet. For thicker carpets, it includes a neoprene extension foot for extra grip and stability. Is DoorJammer DJ3 easy to install and remove? Absolutely! No tools are required. Simply position it under the door, twist the screw to secure it, and pull upwards to release. Its quick-install and emergency-release design makes it user-friendly and reliable. Can DoorJammer DJ3 be used on doors with weather strips or protective seals? No, DoorJammer DJ3 is NOT compatible with doors that have weather strips or protective seals. These can interfere with the device’s stability and effectiveness, so it’s best used on doors with flat, unobstructed surfaces.

Specs 15

Brand DoorJammer
Mounting Type Under Door Mount
Color DJ3 - DoorJammer (Standard)
Style DJ3 - Travel Size
Product Dimensions 2.76"L x 1.57"W x 4.25"Th
Number of Pieces 2
Manufacturer DoorJammer
Unit Count 2 Count

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 29 – Oct 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Used every European hotel
Size: DJ3 - Travel Size
As a solo traveler, this device provided a little extra security and was not complicated to use after I figured out what I was doing wrong. Basically slide the foot under the door and press the back vertical piece at the hinge so that it’s flush against the door, then screw down tight. The foot doesn’t need to be perfectly flat to work. Traveling in Italy for 3 weeks last year and Portugal recently for two weeks (different hotels every 2 days) only one hotel could not use this device since the door bottom was flush with the floor. It worked on wood and carpet. During my stay, I’ve had maintenance knocking on my door and other hotel workers. This just helps with making me more at ease along with a do not disturb sign. ... show more
Reviewed in the United States on June 13, 2024 by Kathryn
Peace of mind is well worth the price
Size: DJ3 - Travel Size
I’m a woman and sometimes travel alone for work staying to hotel rooms solo. We’ve all heard horror stories and this easy to use device helps you to feel more secure. It’s a little heavy, but you want it to be, right? Anything lighter wouldn’t be sturdy enough. It’s nice and small, so it doesn’t take up much space in your bag. Best of all, it’s super easy to set up, open and close. ... show more
Reviewed in the United States on July 6, 2024 by HR
Know its limits
Size: DJ3 - Travel Size
The efficacy determines the circumstances! This would not work on my front door bc there is a 2 inch ledge that this could not fit. However, it works great on my back door. You have to position it correctly and twist the lock all the way down to where it's tight. It does work very well - I could not open the door without it being compromised. However, we use this door somewhat often and it's a pain to constantly untwist and reposition when we leave and at night. That's something to keep in mind. In my experience, it's best for traveling (knowing it won't work in every circumstance) and for doors that you don't frequently go through. This is great while we wait for our security door. ... show more
Reviewed in the United States on April 26, 2023 by Carolyn Greenwood
Essential travel item
Size: DJ3 - Travel Size
It's small, yet beefy - it was able to visibly lift the door in its frame as I tightened the screw. I can only imagine what the XL version of this thing might do! It's easy to install and has spacers available for use if the gap between the door and jamb is too large. I didn't do a kick test - the hotels I stayed in probably would've protested, and the vendor's website has some convincing videos posted. To insure against someone else doing that I paired this with one of the two other styles of lock from other vendors. This is the only one I was able to use for doors between adjacent rooms. All three - this one, B0B8MP69KX, and B0BJJV6H5R - weigh about two pounds together. They might be an easy and useful addition to your 'travel kit' whenever a hotel stay is on the itinerary. I think it's a good idea to have something else as a backup for a different reason - this (and both options I used) doesn't work with all doors, but I was able to use at least two everywhere I went. Out l of the three, this was the most versatile: there was only one location on our recent 18-day road trip where I couldn't use this - there was NO gap under the door. ... show more
Reviewed in the United States on November 20, 2023 by James Goodman
Not what I expected.
Size: DJ3 - Travel Size
Nice idea but hopefully this is more of a prototype for an upcoming new and improved version. This cannot be used in any community in door in America. I’ve tried it in the front door, kitchen door and bedroom doors but it does not work anywhere. Tried it in a hotel room door and nothing. It does not slide under nor does it hold and stay in place. Don’t waste your money. ... show more
Reviewed in the United States on June 1, 2024 by omh65
Works if you have large enough gaps in your door and frame
Size: DJ3 - Travel Size
The idea is great however, it does not fit in my doorways because I don't have large gaps between the door and the door frame.
Reviewed in the United States on March 6, 2025 by Experienced Bluetooth Owner
The DJ3 Portable Door Lock Brace: My New Travel Sidekick!
Size: DJ3 - Travel Size
I picked up the DJ3 Portable Door Lock Brace back in August 2024, and let me tell you, this little gadget has become my ultimate travel buddy. It’s the best thing to happen to my peace of mind since I discovered noise-canceling headphones on a long-haul flight full of crying babies. First of all, the installation is so easy, even I could do it without consulting YouTube. Seriously, it’s like the IKEA of door locks—minus the confusing instructions and leftover screws. You just pop it under the door handle, and voilà, instant fortress mode activated! I felt like a secret agent securing my hotel room, ready to take on the world (or at least the room service delivery guy). This lock brace is compact enough to fit in my carry-on, sandwiched between my travel snacks and that novel I swear I’ll finish someday. It’s like carrying a tiny bouncer with you, ready to stand guard at any door. Whether I’m in a hotel, an Airbnb, or that questionable roadside motel (don’t ask), this little hero keeps me feeling safe and sound. The real magic happened during my last trip. There I was, in my hotel room, indulging in a true-crime documentary binge when I heard a mysterious noise outside. My imagination went wild—was it a ghost? A burglar? Just someone who got lost looking for the ice machine? Thanks to my trusty DJ3, I didn’t even flinch. I just sat back, sipped my overpriced minibar soda, and let the lock do its thing. Even at home, I’ve found a use for it. My cat, Mr. Whiskers, has a habit of barging in while I’m trying to enjoy some “me time.” Not anymore! The DJ3 keeps him out, and I get to enjoy my bath without an audience. In short, the DJ3 Portable Door Lock Brace is my knight in shining armor—or rather, my knight in compact, easy-to-install form. If you want to travel with confidence or just keep your cat at bay, this is your go-to gadget. It’s like having a little security guard in your pocket, minus the judgmental looks when you come back to your room with a second dessert. ... show more
Reviewed in the United States on December 19, 2024 by Mark S.
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