The Oxford Boss and Big Boss alarm have been Independently approved by Thatcham Vehicle Security, SBSC Intygad Produkt, ART 4074 (14mm version)), ART 4075 (16mm version)

5 Year life-cycle tested (by Thatcham)
Removable, sealed unit alarm module
Water, vibration, frost and heat-proof
Batteries Included (6 x LR44)
Free Minder Cable
Three keys & Key replacement service
Can be used as a disc lock or padlock
100db alarm
Also available with 14mm shackle

Also Available with a chain to create the perfect chain lock

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