... measure the thickness of non-magnetic materials (e.g. paint,plastic, porcelain enamel, copper, zinc,aluminum , chrome etc ... s u s e d o n anodizing, varnish, paint, enamel,plastic coatings, powder, etc. applied to aluminum ... guessing or errors. Can communicate with PC computer for statistics and printing Can store 99 groups of ... RS-232C cable & software:USB adaptor for RS-232CBluetooth interface