The Phase II PTG-3550 coating thickness gauge can perform two different methods of calculating thickness measurement by utilizing the characteristics of both eddy current and magnetic induction. It can easily detect the thickness of a non-magnetic coating on a magnetic substrate (ferrous) or an insulating coating on a non-magnetic conductive substrate (non-ferrous) utilizing either an integrated probe or the Phase II+'s PTG-3550 auto-detect external Flexible probe.?The Phase II PTG 3550 can be used in many areas of industry including manufacturing, general engineering, commercial inspection, etc.