Fowler High Precision The X-Pro Portable Roughness Tester II can be used for many applications by selecting from a variety of accessories, including: Stand with swivel A variety of probes RS232 output available Optional printer for hard copy output Features: Small, compact size 2 selectable parameters: Ra and Rz Large LCD display Meets ISO and DIN standards N.I.S.T. traceable specimen included Uses 9 volt battery (aprox. 3000 measurements) Ra 1µin to 250µin Includes fitted case