... -200mm,0.05-8inchOperating principle: ULTROSONICMaterials measured: any hard materials, including steel, cast iron, aluminum, red copper, brass, zinc, quartz glass ... indicatorOperating conditions:0-+45(32-104),≤90%RHDimensions: 120x62x30mmweight: 164g(not including battery)Optional Accessories: 6M6mm thin Material probe:Measuring range(steel ...