Abus Trigger Alarm 350 Brake Disc Lock. Incorporates a 10 mm bolt of special steel. Comfortable space to turn the key, even with gloves, thanks to the angle of the integrated cylinder. 110 dB alarm that sounds when it detects a vibration. Allows the activation and deactivation of the alarm with the key in order to facilitate its transport. The different acoustic signals report the state of the battery, activation/deactivation of the alarm. Quality Abus cylinder. Very compact and manageable format. The anti-theft system is supplied with 2 keys, a transport bag and a Memory cable to remind us that the system is mounted on the disc.