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Learning About the Home Security Alarm System

Other than the family guard dog, the most minimal home security alarm system is composed of a simple electric circuit that is built into an entry way. There are two types of home security alarm systems. In a closed circuit home security alarm system the electric circuit is closed when the door isnít opened. As long as the door is closed electricity can flow from one end of the circuit to the other. If someone opens the door then the circuit is opened and cannot flow, thus triggering the alarm. In an open-circuit alarm system opening the door closes the circuit, allowing electricity to flow. In this type of system the alarm is triggered when the circuit is complete. The closed circuit is the most highly recommended system type.

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