Galvantically isolates a boat from all metals ashore as well as from other boats that are plugged into the same shore power circuit. The Galvanic Isolator is rated up to 60 amps capable of handling two 30 amp shore power circuits. The Monitor continually monitors the Galvanic Isolator, boat wiring and shore power wiring for faults. The Display provides both an audible and visual alarm if fault is detected. An added feature of the Monitor and Display is corrosion protection by supplying impressed current into the water, similar to the MerCathode system.