Alarm Lock

siren alarm padlock, door alarm padlock, alarm lock, contaniner alarm padlock, security lock, siren lock, safety alarm padlock, motorcycle alarm lock.

-Length of the shackle can be extended.
The alarm is in the bottom of the lock body, can be used ouside doors.Even it rains, the rain can't come into the lock.
-Widely use, for motorcycles, bicycles, containers, trucks, garden shed etc.Can protect you from unnecessary lost.