alarm lock,motorcycle lock set,siren lock the lock adopts two steps to operate,alarm or without alarm. alarm lock,motorcycle lock set,siren lock   desprition:1. The lock adopts two steps to operate, the first step can only develope the lock’s effect, but can’t give an alarm ,the second step can either lock the vehicle or give an alarm.2. Please use the key to twist the key core as to make the lock pole lock the second step ,when you hear the sound “DU”, which means it is coming into the alarm situation,after 15 seconds , when the lock or vehicle is viberated, it will give an alarm and keep alarm with serial movement or viberation. Each alarm will last for 10 seconds.3. When you hear the sound “Ge.Ge.Ge….” constant voice or the alarm voice stop suddenly, that means the battery will be worn out ,you need to replace the battery .4. When replacing battery , open the lock with the key , remove the two screws beside the lock hole , take out the rubber washer ,you can replace the old battery , please pay attention to the anode and cathode.5.  Warning:in order to replace battery easily later on ,please keep this usage direction..

alarm lock,motor lock,siren lock