ISR-C300 INSIZE Portable Surface Roughness TesterINSIZE Portable Surface Roughness Tester Portable and robust for efficient use in work shop, yet delicately precise for inspection. With the included software, the Surface Roughness Tester can be operated by your mobile phone or PC. Features include Parameters: Ra, Rz, Rq, Rv, Rp, Rs, R3z, R3y, Rt, Rc, Rz(JIS), Rk, Rku, Rsm, Rpc, Rpk, Rvk, Rsk, Mr1, Mr2, Ry, Rmax, R5p, R5v, R10z, Rpt, Rvt, Ry5, tp1, tp2, Rmrc1, Rmrc2, Rpkx, Rvkx, Ramax, Rzmax Range X