Tinker & Rasor Copper-Copper/Sulfate (CSE) Half Cell Reference Electrodes – 3-A “Fat Boy”

3-A “Fat Boy”:This electrode nicknamed the “Fat Boy” is designed specifically for use on concrete surfaces.  The 3-A reference electrode has a 3″ diameter with a waffle pattern tip allowing for an increase in surface area over the electrolyte.  To allow for an even better contact to the concrete a sponge is conveniently included and carried in the cap of the electrode allowing you to place it between the half cell and concrete.