Corrosion tester

A meter for testing marine corrosion comprising:

• an Ag/Ag—Cl reference electrode element attached to one end of a predetermined first length of insulated and shielded wire and an input jack on the other first wire length end;
• an alligator clamp with two insulated handles attached to one end of a second predetermined length of insulated and shielded wire and an input jack on the other second wire length end to attach to and provide input from a structure to be monitored;
• housing means comprising:
• two input jack receptors sized to engage and receive the input jacks;
• a plurality of protection indicator light emitting diodes;
• a plurality of warning indicator light emitting diodes;
• at least one test button;
• a DC power supply;
• at least one central processing unit;
• at least one multiplexer;
• and
• at least one micro-processor chip, wherein DC voltage drives at least one micro-processor chip and at least one multiplexer to protection light emitting diodes to provide indication of the level of cathodic protection for the structure to be monitored, DC voltage drives at least one micro-processor chip and at least one multiplexer to warning indicator light emitting diodes to provide indication of reversed inputs, open circuit, or low DC power supply level, and DC voltage drives at least one micro-processor chip and at least one multiplexer to monitor a waveform generated by a specific interrupted impressed current cathodic protection source and to measure the potential reading during the time period that a current generated by the interrupted impressed current cathodic protection source is off.