The ABUS Disc Brake Lock Trigger Alarm 345 sends thieves fleeing with an acoustic alarm signal. The alarm function is triggered by a vibration sensor. Thanks to the On/Off switch, you can also transport the Trigger Alarm 345 in a locked state without false alarms. The most security-relevant parts are made of hardened special steel. The convenient push-down cylinder ensures that the bolt automatically locks when you close it. The package includes a battery for the electronic unit, two keys, a transport bag, and a memory cable that reminds you to remove the Trigger Alarm 345 before starting.