Oxford Big Boss Alarm Disc Lock -16mm

The Oxford Boss Alarm has been independently tested and approved by Sold Secure (Gold standard), SBSC Intygad Produkt, ART 4074 (14mm version)), ART 4075 (16mm version)

As well as being an extremely secure lock, it has a built-in alarm which is triggered by movement sensors; it can also be lock without setting the alarm

Key Features
• Reliability is assured by 5-year life-cycle testing (by Thatcham Research)
• The removable sealed unit alarm module is vibration-resistant and weather-proof against water, frost and heat
• Batteries Included (6 x LR44)
• Three keys and a key replacement service are provided
• Can be used as a disc lock or a padlock
• Very loud 100db alarm
• Also available with 14mm shackle

Can be used with a chain to create the perfect chain lock (OF7/8/9)

Spares available:
• Batteries x 6 (Oxford part number: OF229B)
• Alarm module (Oxford part number: OF3A)


"This lock means business" - bikelockwiki.com
Read full review

This product has met the high demands of the Police Preferred Specification and has been accredited "Secured by Design" (SBD)

SBD is a police initiative which seeks to achieve sustainable reductions in property theft.

By encouraging good design and practice, SBD aims to reduce the demand on police forces and help us all live in a safer society.

To see the full list of our SBD approved products

click here

Find out more about our Security products by exploring our dedicated website:

Item code: OF4
Pack Qty: 1
Product code Size RRP
OF4 16mm £99.99