U-Shackle Lock Alarm


A versatile U lock with alarm for securing valuable items from theft.
When an attempt is made to cut through the shackle a 110 decibel siren starts sounding.In addition a shock sensor will detect if the lock casing is being attacked and sound the alarm accordingly.

• Hardened steel shackle – 15mm (5/8″) thickness
• Rubber coating on the shackle prevents scratching to objects
• Ultra hard zinc lock casing
• High security keys and lock cylinder
• 110 Decibel alarm sounds if the shackle is cut
• Uses award winning patented technology to detect when the shackle is being cut or the lock is being violently attacked
• Flashing LED to warn off thieves
• Weatherproof
• Includes bracket for ease of transportation on a bicycle/scooter/motorcycle etc.
• Requires 4 x LR44 batteries (included)
• Batteries fit inside a tamper proof compartment
• Overall Dimensions: 13 x 20.5 x 3.5 cm (5″ x 8″ x 1.5″)
• Internal Shackle Dimensions: 8 x 15 cm (3″ x 6″)
• Weight: 1.05kg (2.3 lbs)

• Holster Bracket facilitates easy if using for Bike Security.


THIS IS OUR BIG BLACK MONSTER. It’s about the size of a carton of (soy) milk and bigger than the top of a 2 litre ice cream pack. It screams strength and security and yet it is comfortable to carry as it’s entirely covered in soft mat black rubber type compound. It makes a formidable bike lock or gate lock and we can’t wait to see what other uses our customers have for it.