Mitutoyo Surftest Surface Roughness Tester, Imperial/Metric Standard Drive, Series: 178, 0.7 in Measuring, Ra, Rc, Ry, Rz, Rq, Rt, Rmax, Rp, Rv, R3z, Rsk, Rku, Rc, RPc, Rsm, Rz1max, S, HSC, RzJIS, Rppi, R"a, R"q, Rlr, Rmr, Rmr(c), R c, Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, Vo, Rpm, tp, Htp, R, Rx, AR and Possible Customize Roughness Parameter, 0.003 in, 0.01 in, 0.03 in, 0.1 in Cut Off Length, 0.3 to 16 mm (0.01 mm Interval) Arbitrary Length, 0.003 in, 0.01 in, 0.03 in, 0.1 in Sampling Length, 0.01 in/s, 0.02 in/s, 0.03 in/s Measuring Speed, LCD Display, AC Adapter/NiMH Rechargeable Battery Power Source, 6.3 in H x 2.05 in W x 2.59 in D/160 mm H x 52.1 mm W x 65.8 mm D Dimensions