Scare away intruders with the Door Stop Alarm System. The wedge shaped design is made to fit for hinged doors. When the door is opened it compresses the door stop triggering the 118 dB alarm siren. 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.

Features & Benefits:

• 118 decibels
• Wedge shaped design 
• Adjustable Sensitivity: High, Medium, Low
• No Wiring Needed
• 9V battery