Model IT Copper-Sulfate Reference Electrode by EDI

Portable reference electrodes for potential measurements in the field.

Starting at $218.75

Grouped product items
Product Name Qty
EDI Model IT2-AGG-ST portable silver-silver chloride eference electrode
EDI Model IT2-CUG-ST portable copper-copper sulfate reference electrode


The Model IT is designed to take potential readings in any application where a standard, liquid junction portable reference electrode is presently being used. Because it contains a gel rather than a liquid, it will neither leak nor require any refilling or cleaning. The hardwood plug offers several advantages over the conventional ceramic membrane. It will not clog as readily, it is resistant to salt blockage, and it can be reworked by light sanding or cutting if it becomes contaminated with oil. All units have antifreeze protection in the gel so that they will not be damaged if exposed to temperatures down to -35oF.

Typical Applications

  • Portable reference electrodes for potential measurements in the field


  • Maintenance-free construction
  • 20-years service life
  • All-wood plug
  • Antifreeze protection to -35oF

Element Types

  • AGG: Saturated gelled Ag / AgCl
  • CUG: Saturated gelled Cu / CuS04


Model Types:
* IT-CUG-ST: Saturated gelled CuCuSO4
* IT-AGG-ST: Saturated gelled AgAgCl 


Housing Specifications

  • 1 5/8" dia. x 6" long PVC
  • 1/4-20 threaded stud termination


Element Specifications

  • Design life: 20+ years
  • Shelf life: Indefinite with end cap in place
  • Maximum temperature: 140oF
  • Minimum temperature: -35oF