... .4. All function, data, operation and display are English.MT3100 coating thickness tester is a portable meausre instrument. It can ... It can measure the thickness of non-magnetic coatings ( e.g. zinc, aluminum, Cr. Copper, rubber, paint and etc.) ... mistake settingsMusic Box Function: it will instruct for the operation with music boxBattery rest capacity instuct functionStandard configurationMain unit ...