... )Patent: 200420003536.0Name : alarm disc lockCan be used on:Motorcycle ,bike, etcLock Features:105-110 db alarm soundAuto-alarming system & locking ... unalarmed statesAutomatic alarm resetShake,shock,move or vibrate sensorResistant corrosion , Resistant bad weather, Resistant physical destory, Waterproof .Lock pin diameter ... sample(western union)Certificates: CE and Rohs20ft :30000pcs Alarm Disc Lock