Thickness Meter,: 1.Coating thickness meter, 2.Thickness Gauge, 3.Fashion Design. Thickness Meter, Thickness Gauge1.Coating thickness meter,2.Thickness Gauge,3.Fashion Design.MODELCM-8820Measuring principleMAGNETICMEASUREMENT RANGE0~ ... 1)POWER SUPPLY4X1.5V AA(UM-3)BATTERYDIMENSION161X69X32mmApplicationDesigned for measuring the thickness of non-magnetic coating layers (aluminum,chrome,copper, ...