Silver / Silver Chloride Refillable Reference Electrode - 6 mm dia.
Mercury-Based Non-Refillable Reference Electrode - 6 mm dia.
Non-aqueous Silver / Silver Ion Refillable Reference Electrode - 6 mm dia.
Pseudo-Reference Electrode - PR 0.6/50 mm
Autoclavable Silver / Silver Chloride Reference Electrode - Autoclavable Ag/AgCl
Soil Silver / Silver Chloride Reference Electrode - Soil Ag/AgCl
High-Pressure Ag/AgCl Reference Electrode - 6/75 mm