Ag/AgCl Reference Electrode is made of high silver (99.99%) and other kind of high purity materials. With the advantages of high-temperature stability, good chemical stability and high-strength plastic shell, it could be used in offshore and grounding and other complicated environments for a long time. So Ag/AgCl Reference Electrode is widely used in cathodic protection and other related fields. Ag/AgCl Reference Electrode we designed consists of two kinds: Permanent Ag/AgCl Reference Electrode and Portable Ag/AgCl Reference Electrode. We also could design the products according to customers’ requests. The test condition: 1, Medium: 3M KC1 2, Reference electrode: Hg/Hg2C12 3, Temperature: 25℃