The EF series is a non-contact eccentricity measuring device, specifically designed for themeasurements of eccentricity ,wall thickness, diameter, ovality, surface lumps and necks ofwires and cables. The operator receives immediately clear information about eccentricityvalues that can be instantly used for control or adiusting the extruder head.so as to makesure the wall thickness and diameter of the cable are kept at the optimal size.This assuresmaximum material savings.