The Oxford Boss Alarm has been independently tested and approved by: Sold Secure (Gold standard), SBSC, Classe SRA and FG.As well as being an extremely secure lock, it comes with an ear- splittingly loud 100dB alarm which is triggered by movement sensors; you can also lock it up without setting the alarm.

Features:

• Very loud 100dB alarm.
• The removable, sealed unit alarm module is weather-proof against water, frost and heat, as well as vibration-resistant.
• Can be used as a disc lock or a padlock.
• Anti-jack design can withstand 4.5 tonnes of tensile load.
• Three keys included.