... e d o n anodizing, varnish, paint, enamel,plastic coatings, powder, etc. applied to aluminum, brass, non-magnetic stainless steel, etc ... with no guessing or errors. Can communicate with PC computer for statistics and printing Can store 99 groups of measurements. Statistics ... ).........1 pc.Optional accessories: RS-232C cable & software:USB adaptor for RS-232CBluetooth interface