Combines locking function with alarming function. Built-in movement triggered alarm, which can emit loud sound when the lock is hit or shaken. Adopts MCU core procedures, high-tech integrated circuit and digital sensor chip. Can be set to two states: mechanical lock and alarm. Low false alarm rate. Low power consumption alarm lock. Can be used on door, window, bicycle, container, motor bike, tricycle, pull gate, garden, etc. Corrosion resistant, waterproof and durable to use. Powered by six button batteries. Supplied with three keys, convenient to use. The alarm lock is a new concept in padlock systems which will deter any attempted theft or break in whilst alerting you if in close proximity.A great product that spins an edge on the old padlock systems which can be used for a multitude of equipment including Sheds and out buildings, gates,garages and lockups, motorbikes,bicycles, trailers, caravans, garden machinery, lawnmowers, to olboxes, gas cylinders, diesel tanks etc. Brand No Brand SKU OT776EL0XE1ZWNAFAMZ-214683