- Suitable for small surfaces, concave or convex surfaces after calibrated
- Magnetic induction probe (Fe) is to measure the thickness of non-magnetic coating on magnetic substrate Substrate: iron, steel, magnetic stainless steel (does not include non-magnetic stainless steel) Coating: zinc, copper, chrome-tin, plastic powder, paint (does not include nickel)
- Eddy current probe (NFe) is to measure the thickness of non-conductive coating on non-magnetic metal substrate Substrate: copper, aluminum, zinc, non-magnetic stainless steel Coating: plastic powder, paint, anodizing
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