New Alarm Lock with Alarm, best on the market, includes tamper-proof sensitivity activates siren. Instantly increase your home security with alarm padlock systems. These new smart locks with built-in alarms are one of the top-selling security products in 2015. Alarm clocks can be used with or without the alarm function. Uses such as locking: homes, tool boxes, power tools, gates, sheds, garages, gate motors, braai equipment, garden furniture, caravans, trailers, gas bottles, motorbikes, bicycles and many more.