The Tinker & Rasor SC-4 Land & Sea Kit is a portable Silver–Silver Chloride (Ag/AgCl) Reference Electrode kit designed for accurate structure-to-electrolyte potential measurements in saltwater and saline soil environments.

This kit provides a complete solution for performing cathodic protection measurements in both land and sea applications. The included components are designed for reliable field use, allowing technicians to obtain consistent and accurate readings in a wide range of environments. Proper handling, maintenance, and use of the electrodes will ensure dependable performance and long service life.