... ,PC-RC,GAUSS,D-P 2.parameter:Ra,Rz,Rq,Rt 3.inductance sensor 4.420g SRT-6100 Portable Digital Surface ... results on LCD.Features* Multiple parameter measurement: Ra, Rz, Rq, Rt* Highly sophisticated inductance sensor* Four wave filtering methods: RC, PC ... , Rq: 0.005-16.00um/0.020-629.9uinch Rz,Rt: 0.020-160.0um/0.078-6299uinchAccuracy: Not more than ...