The GE personal security deluxe door alarm provides a simple-to-use, cost-effective security solution to protect you and your family against home invasions. Perfect for homes, apartments, dorm rooms and offices, the alarm has a built-in 120-decibel siren, loud enough to make a would-be intruder think twice about entering through your doors. The door alarm features an away mode which offers a 45-second exit delay and a 30-second entry. When the alarm is in home mode the alarm will sound instantly when the door is opened. Also included is a 4-digit keypad, which activates and deactivates the alarm with a 4-digit code of your choosing. With no wires required for installation, protecting any door in your home is easy – simply attach the alarm to your door with double-sided tape (included) or screws (included). Each door alarm features a low battery indicator light and requires 3 AAA batteries (not included).