The Kelvin electronic valve controller is a set-and-forget
electronic superheat control that provides a new level of efficiency for a/c
and refrigeration systems. The Kelvin is able to control all Sporlan EEVs as a
part of a true system solution that consists of the Kelvin controller, one or
two temperature sensors, a Sporlan electric expansion valve, and a pressure
Parker Hannifin Corp., Sporlan Div.