Importance

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Abstract

A security system for alerting an intrusion disturbance at an entry point to a residence, or alerting as to other emergency conditions, such as fire is disclosed. In the system, a primary monitoring unit having intrusion detection sensors for placement at entry points to a residence produces an audible acoustic alarm signal upon the occurrence of an intrusion disturbance. The acoustic signal is detected by a secondary monitoring unit which in response transmits an electronic signal through the wiring in the residence. A central monitoring unit receives the transmitted electronic signal and activates an alerting alarm and automatic telephone dialer. The system may further include a portable alarm switch for transmitting a coded radio frequency signal to the central monitoring unit to provide remote activation of an alerting device.

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First Claim