DoorJammer: Alarmed

DoorJammer Alarmed – Portable Travel Door Security with Built-In Alarm

Stay safe and protect your privacy anywhere with DoorJammer Alarmed – built on the original, patented DoorJammer trusted worldwide since 2013. The portable door security device that physically barricades your door AND alerts you instantly if entry is attempted.

Built with a patented steel design, DoorJammer Alarmed creates a strong physical barrier against forced entry in seconds and sounds a vibration-triggered alarm when pressure is applied to the door. It works on almost any inswinging door - even if the door has no lock or handle - and installs quickly by simply turning the screw.

Why Choose DoorJammer Alarmed?

• Barrier + Alarm in One – Physically prevents entry AND sounds a vibration-triggered 90dB alarm, giving you time to react while the door stays shut. 
• Proven & Trusted – The original portable door security device. Award-winning, police-accredited, and patented — trusted since 2013.
• Portable & Lightweight – Compact (244 g) and small enough to fit in your bag or pocket, and TSA approved so you can take in your carry-on luggage.
• No Charging, No Cables, No Hassle – Powered by two long-lasting CR2032 coin cell batteries, replace in seconds and you're protected for months.
• Versatile Protection – Perfect for hotels, Airbnb stays, student accommodation, and added security at home.
• Easy to Use – No tools required; installs in seconds by simply turning the screw. Once installed, switch the alarm on or off as needed - use it as a full alarm-enabled barricade or as the original standalone door security device without the alarm.
• Quick Release - Designed in collaboration with emergency services, includes a quick-release function for immediate removal. 
• Patented Stability – Advanced hinge-and-angle design redirects force downward, anchoring firmly on all floor types: carpet, tile, wood, laminate, etc.

Whether you’re travelling abroad, staying in a hotel, or looking for an extra layer of home security, DoorJammer Alarmed ensures you can always feel safe, secure, and in control.

Alarm Operation:

• Slide the switch to the left to activate, and to the right to turn off.
• Unclip the black alarm box and remove from the DoorJammer to access the battery cover.
• Requires 2 x CR2032 batteries (included).
• Can be used as a standard door barricade - Simply leave the alarm switch off.

Important for proper use of the DoorJammer:

• It needs to be set on a flat surface.
• No weather seals or protective strips - Many residential front doors will have a riser, flashing, weather stripping or sealing etc. that will impede the DoorJammer or not allow it to fit properly. You will need to observe the condition of your front residential door if buying for that purpose.
• There needs to be a 3mm minimum clearance between the bottom of the door and the floor to fit the DoorJammer.
• Designed for inswinging/inward-opening doors only.

Take peace of mind with you wherever you go with DoorJammer Alarmed - your personal hotel door safety device and travel door lock alternative, with added alarm protection.