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Security system

  • US 5,103,206 A
  • Filed: 07/14/1989
  • Issued: 04/07/1992
  • Est. Priority Date: 07/14/1989
  • Status: Expired due to Fees
First Claim
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1. A security system comprising a plurality of alarm equipped security units useable at discrete locations and operated by individual power sources at such discrete locations, said system having linking means for linking all of said units with one another and each unit having at least one environmental sensor and each unit being settable in either one of a link mode or a mono-mode and said system operating such that regardless of the mode in which any of said units is set, an alarm is indicated at all of said units set in said link mode in the event of a disruption of said linking means or activation of the environmental sensor of any unit in said system while at the same time an alarm set off by the environmental sensor at any unit set in said mono-mode is isolated from all other units in said system.

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