JND-S60 Digital Surface Portable Granite Marble Terrazzo Sandstone Slate Gloss Meter  Product description:  JND-S60 Stone Gloss Meter Is in accordance with International standard ISO2813 and the Chinese national standard GB/T13891 Design and manufacture Gloss Measuring instruments.The performance indicators have reached the national JJG696-2002>Metrology and Verification The requirements of a working machine.  The gloss values can be traced  to the those of the National Primary Standards in SIMT in the P.R.China.  Main Applications:  Granite, marble, terrazzo, sandstone, slate, artificial stone,polyester coagulation and many other stone products stone surface gloss measurement.  Advantages  1.All intelligent high-precision& 12289;high stability& 12289;boot can be measured, simple operation.  2.Measurement data for five consecutive years by the certification authority& 65292;Traceable to the "SIMT" national verification center.  3.Unique national level standard black (H) white (L) calibration plate, in line with national standards& 65292;by metrology.  4.The use of advanced optical design,Stable and reliable measurement data.  5.Patented ergonomic housing design,using high-end one-time molding mold,anti-slip,lightweight,and resistant to a variety of solvents.  6.Focus on the safe use of high-end non-conductive housing,high safety factor,to avoid electric shock occurs.  7.Built-in rechargeable battery pack& 65292;the use of imported high-end power management chip, a single charge can achieve continuous measurement of 30h,achieve the industry's lowest power consumption.  8.The use of imported non-mechanical three anti-power switch, long life, feel good.  9.Oval corner,soft surface probe designed to prevent scratching the surface.