Keypad Access

A keypad alarm system is a basic alarm system with a low-voltage circuit that involves sensors on doors and windows. When a window or door is opened, the electricity through the sensor is interrupted and the alarm will sound if activated unless a code is typed into the security keypad. Some of these alarms also use motion sensors and are triggered when motion is detected inside an area.

Keypad alarms, which are available in wired or wireless types, offer several advantages over other alarm systems. They allow the user to control all the access points in a structure, giving access only to select people. These alarms also can be activated whether or not the user is in the area.

Wired keypad alarm systems connect to a control panel. The wires, hidden in walls and various crawl spaces, go to sensors placed on doors and windows, and the keypads themselves. Instead of wires, wireless keypad alarm systems use radio transmitters to send signals to each other. The same alarm effect is created when doors or windows are opened without entering the code into the numeric keypad.