This alarm padlock is movement and shock sensitive and will help to protect your possessions. Can be used to secure: Sheds, Garages, Motorbikes, Bicycles, Trailers, Tool Boxes, Gates and much more. Supplied with 3 x keys and 6 replacement batteries. Batteries should last over 2000 ten second alarms. Alarm activated if lock is moved, touched or knocked. Can be used alarmed or unalarmed. The alarm siren will sound for 10 seconds if triggered, and will re-set itself after 35 seconds. Dimensions (HxWxD) 97x95x30mm. Hardened zinc body with stainless steel shackle.