Dual Position Door Jammer


The Securian MX-3 is an innovative and versatile dual-position day and night door jammer that enables you to secure your door in two positions. Read more

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Locks in place in seconds, with no keys or locks to use or lose


Simple installation to provide superior safety and security


Independently tested to withstand aggressive attacks and substantial forces

Your Property

Engineered and manufactured in the UK, built to perform

Innovative door security

Dual Position Door Jammer

Slot it into place behind your closed door, and it’ll provide complete protection from external threats. By simply turning the Securian MX-3 through 90 degrees you can open the door slightly, allowing fresh air to circulate through your home or office.

Ultimate home and office protection

Suitable for a range of door types

Securian door security products have been designed to work with all types of inward opening doors, including UPVC doors, wooden doors, composite doors and inward-opening patio doors. When in place, you can be confident it’s securing a door against forced entry.

Quick and easy to install, Fitted in minutes

Securian products have been designed for easy installation, we supply all the necessary fitments that you will need to secure and protect your property day or night.

Download the MX-3 installation manual

Designed in the UK and built from exceptional quality materials, the Securian MX-3 provides the ultimate in exterior door protection. There’s no compromise in safety or performance with the Securian MX-3, just greater choice and flexibility.

The Securian MX-3 is an innovative and affordable door barricade that provides premium protection for your home or office. The latest development in door jammer technology, the Securian MX-3 is simple to install and operate and works without keys. Unlike fixed-position door jammers, the Securian MX-3 gives you the option to slightly open the door, without affecting your safety and security.

Our MX range of security door jammers are designed to repel criminals and intruders and are built to withstand up to high attack forces. Whether it’s open or ajar, tests have established that the Securian MX-3 will withstand the typical power used in an intrusion attempt, giving you time to call for help or escape to safety. Security door stops offer an additional layer of home security, and when paired with security devices such as an alarm system should deter even the most determined intruder.

Installed just behind the door, the Securian MX-3 can be dropped into place in seconds and is suitable for most floor types. It’s operated without keys or locks, meaning you won’t run the risk of unintentional lock-in. The unit’s simple design means it can be removed in seconds during an emergency.

Built from the toughest materials, the Securian MX-3 can provide complete protection from criminals, intruders and thieves who are attempting to gain access to your property. Even if your front door lock is picked, or the front door latch is breached, it’ll stand up to the most aggressive and persistent attacks.

Two-position door jammer

The Securian MX-3 is a simple but ingenious design that puts you in control. By turning the unit 90 degrees, you can allow air to flow in and out of your home without sacrificing your security.

We’ve designed the Securian MX-3 with a simple drop-down and pull-up mechanism, which is easy to use by anyone of any age. The brushed metal unit also has protective gel bumpers to protect your door in the unlikely event someone attacks your home or office.

Securian MX-3 features

The Securian MX-3 will protect all inward opening doors in the home or office, including UPVC doors, wooden doors, composite doors and patio doors.

  • Easy to install by a competent person
  • Innovative two-position system
  • Simple to position and remove
  • Built from high-specification corrosion-resistant metals
  • Can withstand up to high attack forces
  • Functional and attractive
  • No keys or locks
  • L 75mm, W 60mm, H 90mm. Minimum door clearance 10mm

24/7 protection

The Securian MX-3 is a heavy duty door jammer built from high-quality, corrosion-resistant materials. It won’t chip, damage or break and needs no painting or finishing. The brushed metal finish is stylish and contemporary, which means it won’t look out of place in any home or office.

The Securian MX range of door jammers is tested to perform in the toughest of situations. Virtual testing (including Finite Element Analysis (FEA) and computer stress modelling) and real-world testing have established that the Securian MX-3 can withstand up to high attack forces – far greater than those generated when attackers attempt to force entry.

The Securian MX-3 is the world’s most advanced two-position door jammer, providing the highest levels of protection for you and your property.

What’s in the box

contents of dual position door jammer

The Securian MX-3 comes with detailed installation instructions that can be used by a competent professional to install it.

In the box you’ll find:

  • High-quality door jammer and baseplate
  • Stainless steel fixings
  • Plastic rawl plugs
  • Installation instructions. Including recommendations for tools, drill bit/hole sizes etc.

Length: 75mm
Width: 60mm
Height: 90mm
Minimum Door Clearance: 10mm
Weight: 336g

dual position door jammer installation

Instructions can be downloaded using following link.

Download the MX-3 installation manual

Click here to watch a video tutorial showing how to install the Two-position Door Jammer.

What doors can I use the Securian MX-3 with?

The Securian MX-3 will work with all types of inward opening doors, including UPVC doors, wooden doors, composite doors and inward-opening patio doors. It’s not suitable for sliding doors.

Why did you create a two-position door jammer?

The Securian MX-3 allows you as the property owner to remain in control, adding an additional layer of extra security. You may want to improve airflow to remove bad smells or odours, or just enjoy a little bit of the outside while remaining safe and secure indoors.

The Securian MX-3 keeps you in control of your protection and your property.

How easy is it to use the Securian MX-3?

The Securian MX-3 is straightforward and simple to fit, but we recommend you use a competent person to install it. If the Securian MX-3 door jammer isn’t fitted correctly, it can affect the opening and closing of your door.

Can I use the Securian MX-3 with UPVC doors?

Yes, you can. The Securian MX-3 is safely used to secure UPVC doors.

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