... Rt2)Highly sophisticated inductance sensor1.FEATURESThis instrument is compatible with four standards of site to measure surface roughness of ... P* Built-in lithium ion rechargeable battery and control circuit with high capacity* Small in size, light in weight ... PC.*Metric /Imperial Conversion2.SPECIFICATIONSDisplay4 digits, 10 mm LCD, with blue backlightParametersRa, Rz, Rq, RtMeasuring RangeRa, Rq: 0 ...