I am thinking of a good item that can be on guard round the clock especially at night. Since I was hearing some footsteps on our roof every once in a while especially late at night I might as well install a burglar alarm in our house. Just for safety, because who wants to be robbed? or who wants to get their life in danger that is the reason this kind of item was invented and it became quite useful for many other uses just like in malls, boutiques and at home. Who knows who and what might sneak in when our eyes are away!