... lock alarm,bike cable lock Insert key and turn to open the lock rod, the rod ... Fit for motorcyle, bicycle, electrombile, rolling door and so on.(2).Automatic alarm reset, Waterproof .(3 ... lock is composited of piezoelectric buzzer , electronic chips and stainless steel body . (4).Meterial: Alloy ... function. Mechanical lock adapt internal pressure column and external pressure type spring lock.3.Change ...