... the measurement results on LCD. * Multiple parameter measurement: Ra, Rz, Rq, Rt* Highly sophisticated inductance sensor* Four wave filtering methods : RC ... , 10 mm LCD, with blue backlightParameters: Ra, Rz, Rq, RtMeasuring Range Ra, Rq: 0.005-16.00um/0.020-629.9uinch Rz ...