The general-proximity electrode can attach to a diver's belt, providing potentials while he or she works.
The Polatrak proximity probe is designed specifically for diver use when conducting subsea platform services. Like all Polatrak probes, it has twin Ag/AgCl elements to allow on-line calibration. The standard seacon RM-3 connector allows it to be rapidly plugged into the diver’s inspection umbilical. This is a proximity probe that can only be used with a topside ground. Deepwater can supply a mating umbilical cable if required. The probe can be interfaced to small eyeball-type ROVs if needed, but still can only operate in the proximity-survey mode.