Portable Copper-Copper Sulfate Reference Electrode by Collins

  
  
Dependable, portable copper-copper sulfate reference electrode used for structure-to-soil (or water) potential readings.

Rugged laminated bakelite construction withstands rough field use.  The pourous end plug is made from birch, which is covered with a rubber cap when not in use.  The large copper sulfate reservoir reduces refills to a minimum.

Standard electrode length is 8" but longer lengths can be custom made to order.