DeFelsko PosiTector 6000 Standard Coating Thickness Gauge with Ferrous 90 Degree Regular Separate Probe, 0 - 60 mils Range For non magnetic coatings over ferrous metals (steel and iron) Monochrome display Storage of 250 readings in one group, stored readings can be viewed or downloaded USB port for fast, simple connection to a PC and to supply continuous power; USB cable included 2 year warranty on gage body and probe