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DoorJammer Portable Door Lock Brace for Home Security and Personal Protection (DJ3 - DoorJammer)

  • Based on 2,164 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Apr 29
Order within 4 hours and 1 minute
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Size: DJ3 - Travel Size


Features

  • Patented Door Security Innovation: Elevate your peace of mind with the DoorJammer, the original patented door security device acclaimed for its award-winning design. Whether you're traveling or at home, the DJ3 model is your perfect companion for interior, hotel, and travel doors. For those in need of securing larger doors in public buildings, schools, churches, and hospitals, our DJ4 model is ideally suited.
  • Effortless Setup & Emergency Release: Secure your space in moments without any tools required. The DoorJammer's intuitive design allows you to simply slide it under your door and tighten the screw for instant security. In urgent situations, disengage swiftly with our innovative quick-release feature, enabling you to exit swiftly by pulling it upwards.
  • Universal Fit for Inswing Doors: Designed to accommodate the majority of internal doors, the DoorJammer is compatible with any door that has a minimum of 18 clearance underneath. Enhance its effectiveness with the included three-size spacer keyring set, perfect for adjusting to gaps above the door and ensuring a fortified barrier. Its compact size (12cm height x 7cm width) and lightweight design (227g) make it an indispensable travel accessory.
  • Adaptable to Various Flooring Surfaces: Whether your floor is tiled, laminate, or carpeted, the DoorJammer's unique hinge and angle system ensures it stays anchored under force. Each package includes a durable neoprene extension foot for enhanced grip, ideal for use with doors that have larger bottom gaps. For optimal performance on thick carpets, the DJ3 model's extension foot provides additional stability.
  • Tested and Guaranteed - DoorJammer is the ONLY portable door security device fully strength tested at Winkhaus Laboratories, earning a PAS24 certificate. We are so confident of our patented design and durability well issue a refund of your purchase price if DoorJammer fails to perform as promised.

Brand: DoorJammer


Mounting Type: Door Mount


Material: Metal


Color: DJ3 - DoorJammer (Standard)


Style: DJ3 - Travel Size


Product Dimensions: 2.76"L x 1.57"W x 4.25"Th


Finish Type: Steel


Number of Pieces: 1


Brand: ‎DoorJammer


Mounting Type: ‎Door Mount


Material: ‎Metal


Color: ‎DJ3 - DoorJammer (Standard)


Style: ‎DJ3 - Travel Size


Product Dimensions: ‎2.76"L x 1.57"W x 4.25"Th


Finish Type: ‎Steel


Number of Pieces: ‎1


Manufacturer: ‎First Aid Only


Part Number: ‎91355


Item Weight: ‎11.3 ounces


Item model number: ‎91355


Is Discontinued By Manufacturer: ‎No


Size: ‎DJ3 - Travel Size


Finish: ‎Steel


Item Package Quantity: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 24, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Apr 29

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


  • Easy Travel Extra Peace of Mind
Size: DJ3 - Travel Size
This worked perfectly. My family of 4 went to Mexico for Spring Break. We stayed at a very safe resort, but having this helped me sleep better at night. We ended up with a suite and the kids bedroom was right by the front door. Our room was upstairs. If you watch the videos, this is easy to install and remove. In our case, the floor was tile and the door was wood, and I was able to get a very secure block on the door each night without too much effort. I’m sure it would work as well on carpet floors. It’s small enough to throw in the bottom of the suitcase (we checked, so not sure how this would go through security- it’s solid metal and strange-looking). Would definitely recommend if you’re a worrier. ... show more
Reviewed in the United States on April 8, 2023 by Christina C.

  • 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

  • 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

  • SAFETY IS SOLID
Size: DJ3 - Travel Size
This is piece basically save my life.. important to leant how to use correctly. DO Not over tighten as you can warp the bolt very easy, and it will begin to slide. Always use with door jammer included for best results. If device begins to fail take it as a sign a intruder has attempted to power thru it. Replace it immediately to keep your security. I recommend this product to any one traveling or need non- electronic or Wi-Fi dependent security 100%. Check it after every use and replace if you see wear or warping. Metal is strong and ingenious design.. the only improvement I recommended is to make a lift cap that cover the entire bottom. It's the only flaw in the feature if the is a visible gap under the door or over replacements. ... show more
Reviewed in the United States on December 3, 2023 by la chica

  • Junk! On carpet the door slid right open.
Size: DJ3 - Travel Size
I don't know how this has the good reviews it has. I installed it, even with the extra gripping piece and I was easily able to push a door open. The stopper just slid right over the top of the carpet. Total junk!
Reviewed in the United States on October 11, 2023 by Rebekah Reviews

  • Ease of use
Size: DJ3 - Travel Size
Much better device for securing interior door for peace of mind. Also, purchased the cloth & velcro 'super grip lock,' which was a rip-off for $10 ! The 'Door Jammer' has worked well on two different locations so far while travelling. I must admit though; the $25 and change for this is vastly overpriced. They package it nicely which contributed to the cost. Not necessary. They advertise Designed in UK & USA... but MADE IN CHINA ! When will we learn to bring jobs home?? ... show more
Reviewed in the United States on October 3, 2022 by Read

  • Very Sturdy and Works Well!
Size: DJ3 - Travel Size
I've used this product for about a year now because I travel a lot and stay in AirBNBs. This product has provided a secure way to keep the door to my room secure. It takes about 30 seconds to get into place and it's very sturdy. Made of heavy metal, not lightweight, and does the job.
Reviewed in the United States on June 12, 2023 by Wen

  • Must have
Size: DJ3 - Travel Size
I purchased this for my daughter who lives in a dorm like building to ensure that she is safe when in her apartment. Very easy to use and did not fail the test we put it through.
Reviewed in the United States on November 2, 2023 by Candace Swann

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