1) Have peace of mind when stepping outdoors or moving away from your valuable belongings.2) The Security Pad Lock with Smart Alarm Motion Sensor is a utilitarian device suitable for attachment on garden sheds, garages, houses, caravans, gates, vehicles and more.3) It ensures reliable protection of your precious entities with its built in safety system that activates the alarm automatically the moment an intruder tampers with the lock. 4) An encroacher might just attempt to break the lock with a wrong key or attempt to directly bang on the lock, in such scenarios, this Security Pad Lock will initially ring a warning beep with little meddling movements followed by the proper alarm ring with heavy banging/breaking force.Alarm Siren function 1) First Insert the key and rotated to open the lock then put lock rod with a concave groove towards the key port down ??2) When you hear the sound??di?? that means the lock is coming into alarm situation, after 5 seconds, When the lock is vibrated again, it will give an alarm and keep alarm serial movement or vibration and each alarm will last 10??s ??If in a minute without triggering, returned to the original function.