This device is an integral component of your alarm system and is basically used to turn the system on and off.  This is accomplished by entering a pre-programmed code and/or set of commands into the keypad.  The display on the keypad will show you the current status within your security system.

The keypad could also enable you to control most of the functions of the alarm system within your building.  And, if programmed accordingly, it can also allow you to summon police, fire, and ambulance response services.