30 inch long extension rod that can be inserted between a standard reference electrode (RE-5, RE-5C, RE-7, RE-3A, Sponge Bottle etc.) and a “Side Terminal Electrode Extension” in order to further extend the distance between a reference electrode and a (side terminal) test lead connection. For example, combining catalog #16101 with catalog #16203 would result in a total rod length of 60 inches. Multiple Intermediate Electrode Extension's may be used to increase total length.
