---
product_id: 114105458
title: "DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design"
brand: "doorjammer"
price: "39845CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Door Jammer"
url: https://www.desertcart.sn/products/114105458-doorjammer-dj3-portable-door-lock-brace-for-home-security-personal
store_origin: SN
region: Senegal
---

# Compact & travel-friendly Tool-free quick install Supports doors up to 100 lbs DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design

**Brand:** doorjammer
**Price:** 39845CFA
**Availability:** ✅ In Stock

## Summary

> 🚪 Lock down your peace of mind—anywhere, anytime!

## Quick Answers

- **What is this?** DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design by doorjammer
- **How much does it cost?** 39845CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/114105458-doorjammer-dj3-portable-door-lock-brace-for-home-security-personal)

## Best For

- doorjammer enthusiasts

## Why This Product

- Trusted doorjammer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Surface Grip:** Includes neoprene foot for stable anchoring on carpet, tile, or laminate floors.
- • **Lightweight & Portable:** Weighing just 227g, it fits easily in your bag for peace of mind anywhere you go.
- • **Effortless Security Setup:** No tools needed—secure your door in seconds with a simple twist.
- • **Universal Fit with Spacer Kit:** Customizable spacers ensure a perfect fit for inswing doors with 0.25-1.5 inch clearance.
- • **Industrial-Strength Protection:** Patented design withstands force, locking doors firmly against unwanted entry.

## Overview

The DoorJammer DJ3 is a patented, compact door lock brace designed for quick, tool-free installation on inswing doors with 0.25 to 1.5 inch clearance. Supporting doors up to 100 lbs, it features a customizable spacer kit and a neoprene foot for secure grip on various floor types. Lightweight and portable, it’s ideal for home, travel, and hotel security, providing industrial-strength protection against forced entry.

## Description

desertcart.com: DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design : Office Products

Review: This jammer absolutely works! But first read this review about installation....... - I was looking for an added safety feature to use on my front door while I am inside, especially while I am sleeping. This one caught my attention, especially the fact that it is small enough to travel with. But don't let its size fool you. It is very sturdy and, when properly installed, it will be nearly impossible to push a door open. I was very surprised when I read the reviews and saw many saying it did not work. The site also stated that this is a frequently returned item. And yet I took a chance and ordered it. This is an amazing product and I believe I know why many say it does not work and have returned it. THEY DID NOT INSTALL IT PROPERLY!!! I know because the first couple of times I tried to install it it would not stay in place. So I continued trying until I finally figured it out and installed it correctly and securely. So here are my step by step instructions of how I installed it successfully. (Take a look at my photos) And you do not need any tools to do this: The box comes with the jammer, a key ring of rubber spacers, an additional base part that needs to be used for doors that have a high clearance and a handy carrying case. 1) On the ring find a rubber spacer that will fit snuggly at the top of the door. You do not need to remove them from the ring. In my case I used 2 together to fill the gap. The reason for the rubber spacers is to hold the alignment of the door in place as the jammer pushes the door from the bottom. Insert the spacer at the top of the door on the opposite end of were the door where the hinges are (On the opposite end of where the hinges are, this is crucial). 2) Make sure the the screw base end of the jammer is screwed all the way in. 3) At the bottom of the door, on the opposite end of the hinge area ( again, crucial), insert the jammer. The L shaped bracket of the jammer goes beneath the door and it must be held firmly and flush against the door while you turn the base screw. This is where the installation goes wrong, if the bracket is not held flush against the door! I just held it in place with my thumb. The L shaped bracket needs to be held in place while you do the next step. 4) Now slowly turn the base screw. The screw will begin to press against the floor at the same time is presses the jammer into the door. Keep holding the jammer securely against the door until the base screw will no longer turn. Now remove your hand from the jammer and try opening the door. If you have done it correctly that door will not move a centimeter and the jammer cannot be pulled away from the door. The negative reviews and the returns of this item could be easily eliminated if clear and concise instructions came with the product. There are no instructions provided for the end user. I had to sort of figure it out on my own. I have seen more and more of this practice in the last few years. You receive a product and have no idea on how to use it. The Seller ends up getting lousy reviews and the items keep getting returned. Us consumers end up passing up on possible good, useful products because the reviews say it does not work. And the reviews say it does not work because they do not know the proper way to use it. It a vicious cycle. SELLERS, INSTRUCTIONS, SEND US INSTRUCTIONS. It is a shame in this case because this jammer really, really works and is the perfect solution to the added safety and security I was looking for. So if you follow MY INSTRUCTIONS, you will be able to increase the security of any door in your home or place of work. Good luck!
Review: Absolutely worth it - This is definitely worth it. I tried it on my own door and it works like a charm, it locks in place. Highly recommended. It's not heavy at all, very easy to use.

## Features

- 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.
- Enhanced Security Features: Patented and award-winning, the DoorJammer provides industrial-strength protection against unwanted entry. Made of high-quality materials, it includes a stability-enhancing foot accessory and an easy-to-follow instruction manual for optimal safety.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | DoorJammer |
| Color | DJ3 - DoorJammer (Standard) |
| Material | Metal |
| Mounting Type | Door Mount |
| Product Dimensions | 2.76"L x 1.57"W x 4.25"Th |
| Style | DJ3 - Travel Size |

## Product Details

- **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:** DoorJammer
- **UPC:** 814953024170

## Images

![DoorJammer DJ3 Portable Door Lock Brace for Home Security and Personal Protection | Hotel Room, Apartment Safety, Travel Door Stopper | Easy Installation, Compact Design - Image 1](https://m.media-amazon.com/images/I/71UBqoFwDTL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How can I ensure that the DoorJammer DJ3 will fit my door?**
A: 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.

**Q: Can DoorJammer DJ3 secure all door types?**
A: 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.

**Q: Can I use DoorJammer DJ3 on all floor types?**
A: 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.

**Q: Is DoorJammer DJ3 easy to install and remove?**
A: 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.

**Q: Can DoorJammer DJ3 be used on doors with weather strips or protective seals?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This jammer absolutely works! But first read this review about installation.......
*by B***D on September 22, 2025*

I was looking for an added safety feature to use on my front door while I am inside, especially while I am sleeping. This one caught my attention, especially the fact that it is small enough to travel with. But don't let its size fool you. It is very sturdy and, when properly installed, it will be nearly impossible to push a door open. I was very surprised when I read the reviews and saw many saying it did not work. The site also stated that this is a frequently returned item. And yet I took a chance and ordered it. This is an amazing product and I believe I know why many say it does not work and have returned it. THEY DID NOT INSTALL IT PROPERLY!!! I know because the first couple of times I tried to install it it would not stay in place. So I continued trying until I finally figured it out and installed it correctly and securely. So here are my step by step instructions of how I installed it successfully. (Take a look at my photos) And you do not need any tools to do this: The box comes with the jammer, a key ring of rubber spacers, an additional base part that needs to be used for doors that have a high clearance and a handy carrying case. 1) On the ring find a rubber spacer that will fit snuggly at the top of the door. You do not need to remove them from the ring. In my case I used 2 together to fill the gap. The reason for the rubber spacers is to hold the alignment of the door in place as the jammer pushes the door from the bottom. Insert the spacer at the top of the door on the opposite end of were the door where the hinges are (On the opposite end of where the hinges are, this is crucial). 2) Make sure the the screw base end of the jammer is screwed all the way in. 3) At the bottom of the door, on the opposite end of the hinge area ( again, crucial), insert the jammer. The L shaped bracket of the jammer goes beneath the door and it must be held firmly and flush against the door while you turn the base screw. This is where the installation goes wrong, if the bracket is not held flush against the door! I just held it in place with my thumb. The L shaped bracket needs to be held in place while you do the next step. 4) Now slowly turn the base screw. The screw will begin to press against the floor at the same time is presses the jammer into the door. Keep holding the jammer securely against the door until the base screw will no longer turn. Now remove your hand from the jammer and try opening the door. If you have done it correctly that door will not move a centimeter and the jammer cannot be pulled away from the door. The negative reviews and the returns of this item could be easily eliminated if clear and concise instructions came with the product. There are no instructions provided for the end user. I had to sort of figure it out on my own. I have seen more and more of this practice in the last few years. You receive a product and have no idea on how to use it. The Seller ends up getting lousy reviews and the items keep getting returned. Us consumers end up passing up on possible good, useful products because the reviews say it does not work. And the reviews say it does not work because they do not know the proper way to use it. It a vicious cycle. SELLERS, INSTRUCTIONS, SEND US INSTRUCTIONS. It is a shame in this case because this jammer really, really works and is the perfect solution to the added safety and security I was looking for. So if you follow MY INSTRUCTIONS, you will be able to increase the security of any door in your home or place of work. Good luck!

### ⭐⭐⭐⭐⭐ Absolutely worth it
*by R***E on November 17, 2025*

This is definitely worth it. I tried it on my own door and it works like a charm, it locks in place. Highly recommended. It's not heavy at all, very easy to use.

### ⭐⭐⭐⭐ Know its limits
*by C***D on April 26, 2023*

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.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-06*