Lock specs:

• Double-Locking System
• High Nickel Stainless Steel
• Weight: 935g (2.05 lbs.)
• 7mm Gap Height, 62mm Depth
• 14mm-Diameter Locking Pin
• High-Security Key and Barrel
• High Level Security

Alarm specs:

• Auto-Alarming System
• 110dB Warning Siren
• Dual Shock & Movement Sensors
• Removable Alarm Module
• Adjustable Sensitivity
• "Smart" LED Arming Sensor
• 6 x LR44 1.5v Alkaline

Xena XN15 High Security Alarm Disc Lock ... £69.99