Signet MK811A-3 Conductivity Controller with Sensor

The Model MK811-3 conductivity controller is a device used to measure conductivity in chemical processes. Conductivity is a function of ion concentration, ionic charge, and ion mobility. Ions in water conduct current when an electrical potential is applied across electrodes immersed in the solution. This controller system consists of a microprocessor-based controller, a Rosemount I94 conductivity probe, a 3/4" CPVC tee assembly and mounting hardware.

All appear to be un-used.