The HI4103 is a solid state, combination ion selective electrode (ISE) for the determination of cadmium (Cd2+) in solution. The mixed cadmium sulfide/silver sulfide sensing pellet produces a potential change due to the cadmium ion exchange between the inorganic pellet membrane and the sample. The internal sensing elements are housed within a durable polyetherimide (PEI) body.The HI4103 is ideal for a variety of applications in electroplating, battery construction, and in the laboratory.