125dB Alarm Blocks door Anti-slide sole plate Reset switch On/off switch to prevent accidental activation in luggage Door Stop Alarm is a unique burglar alarm. The Door Stop is designed in the shape of a 6" long door wedge. Simply place it behind any door. When the door is opened it will jam the door and at the same time gives off a loud, shrill, pulsating alarm. It is designed to scare away ...