Scare Away Intruders
The wedge shaped design is made to fit for hinged doors. When the door is opened it compresses the door stop triggering the alarm. The 118 dB alarm when the siren is triggered.

Adjustable Sensitivity
The trigger has three levels of sensitivity (High, Medium, Low). Special design can be used as a door stop when the power is off.

No Wiring Needed
No need to wire your house with high tech security systems you probably don’t even know how to use. Simply install the 9V battery and place in front of the door you want secured.