... -austenitic stainless steel.2, Four digitals LCD display, differentiating upto μm.3, System calibrating by user-self.4, Pocket shell, convenient ... for engineering locale .5, Thickness unit “μm” or “mil ” optional.6, Micro-controller controls, high accuracy .7 ... thickness pieces(5) , martensite stainless steel block, operating manual, batteries. Painting thickness meter