... gauge Product synopsisModel:SRT-62101.FEATURESThis instrument is compatible with four standards of site to measure surface roughness of ... D-P* Built-in lithium ion rechargeable battery and control circuit with high capacity* Small in size, light in weight and ... PC.*Metric /Imperial Conversion2.SPECIFICATIONSDisplay 4 digits, 10 mm LCD, with blue backlightParameters: Ra, Rz, Rq, RtMeasuring Range Ra, Rq ...