A lock is good, a lock with an alarm system is better. The shackle lock 440A will make any thief flee with 100 decibels.
We protect our most valuable possessions with an alarm system. So why not also our bicycle? The shackle lock 440 Alarm is equipped with the proven 3D Position Detection System, which registers even the smallest movement. If a thief tries to tamper with your bicycle, the lock immediately sounds the alarm. The 100 decibels correspond to the noise of a circular saw and can therefore be heard from afar. An alarm like that frightens off any bicycle thief.
The illustration shows the 230 mm version.