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Portable Reference Electrodes

Absolute Potential of structures is very difficult to be determined accurately and it is common to measure relative to another metal with a non-variable potential which is called reference electrode.  Ag/AgCl and CuCuSO4 reference electrodes are the most common reference electrodes used in Cathodic protection systems.

Conventional absolute potential of standard hydrogen electrode is taken as zero and other electrodes potential is measured relative to this electrode:

Mc miller portable reference electrode

(mv/0C)Thermal Coefficient

Potential (V) vs. H+/H2 at 25

Reference electrode






Cu/CuSO4 sat.



Ag/AgCl (sea water)


Available models:

MC miller portable reference electrode   portable reference electrode
CuCuSO4   Ag/AgCl