... Portable Paint Coating Thickness Gauge 2.Compact aluminum outershell ,F&NF 3.range 0~1250um,other range is ok ... * Statistics is available.2.OPERATING PRINCIPLE Operating principleApplicationFor example(F Type) Magnetic inductionCan measure the thickness of non-magnetic ... gauge,roughness tester,hardness tester,vibration meter,gloss meter,PH/ORP controlller,fuel pressure meter etcANY QURSTIONS,PLS FEEL ...