This is a personal alarm with multifunctions, it is not only available to use as a personal alarm, but also available to use as a window or door alarm by pulling out the activation strap for personal alarm and inserting the clipper switch instead to become a window or door alarm.
Insert the clipper switch inside the gap of window or door that will be set as a window or door alarm at its stand-by status, once the window or door being opened, the clipper switch will spring apart to activate the alarm. |