Zero Resistance Ammeter (ZRA)
Many users like the single function Zero Resistance Ammeter. It is very simple to use and ideal for testing simple galvanic couples. Having a meter on the front makes it easy to monitor the Galvanic Current visually every few hours. Perfect for any laboratory and is also ideal for use in a teaching establishment, it gives the student a good feel for corrosion.
Its purpose is to measure the galvanic current flowing between two electrodes, WE1 and WE2, which act as if they are coupled by a zero resistance wire and to monitor the potential of the galvanic couple.