Safegirl's Step Away Door Wedge Alarms are ideal for frequent fliers, college and university students and anyone who is uneasy about staying solo in a hotel or hostel room. Simply jam the alarm under a door to make it harder to open, and if an intruder tries to force entry, you (and hotel staff) will be alerted with an ear-splitting alarm.
Usage: Turn the slide switch on the base to "ON" position; product is on stand-by. Alarm activates when swing cover swung in approximately 1.5 degrees. The alarm will only be switched off by turning the switch to "OFF" position.