Door Stop Alarm Portable "Door Stop Alarm" System 120-125dB Loud Anti-Theft Door Wedge Security Sensor (Pack of 2)

Enhance personal safety at home or while traveling with this Portable Door Stop Alarm System (Pack of 2).
 Engineered to deliver physical security and immediate audible protection, this wedge alarm features a stainless steel pressure plate that triggers an ultra-loud $120\text{--}125\text{ dB}$ siren the moment an inward-opening door presses against it.

Equipped with a 3-position sensitivity switch (High/Medium/Low), you can easily adjust vibration responsiveness according to your door gap or surroundings. The high-friction non-skid rubber base prevents the door from opening, giving you instant deterrence against unauthorized entry. Simple to use with no installation required, it is perfect for bedrooms, apartments, hotels, and dorm rooms.