Alarm system

Claim 1

Alarm system for protection of sport accessories including bicycles, motorcycles, boats, motors, snowmobiles, and intended for use at home, at work, on vacation or when traveling comprising: a. integrated circuit low-power low-offset dual voltage comparators including separate inputs, one of said comparators as a monitor comparator, said input of said monitor comparators for connection to a monitoring loop; b. a variable line adjustment means connected across said input of the other of said comparators as a line adjust comparator; c. a monitor lead cable including a monitor loop and including a predetermined resistance through a resistor and length of wire in said monitor loop, and including an automobile connector means along a length of said loop for connection through said sport accessories to an input of said monitor loop comparator; d. the output of said comparators connected to a switching transistor; e. a relay including normally closed contacts, common, and normally open contacts connected between said switching transistor and ground; f. alarm means connected to said switching transistor; g. a latch means connected between a node of said alarm means, and said switching transistor and said relay and said input of said comparators; h. power source means connected across said switching transistor and said relay; and, i. housing means for enclosing said alarm system and including a panel for supporting a wiring block, said wiring block including terminal connections for line, ground, normally open, and normally closed terminals, said panel supporting said line and said ground terminal connections for said monitor lead cable and wired to one of said dual voltage comparators and said normally open, common and normally closed terminals connections connected to said relay, an auxiliary power input connected between, an ON/OFF switch, line-adjust switch, and latch-normal switch whereby said alarm system is utilizable in either a fixed or remote location, and can be powered by said power means internally or externally, and provides an internal alarm signal as well as said normally open and said normally closed connections for external switched alarm signals, thereby providing an alarm system for sport items.