high-precision stone gloss meter jnd-s60 measuring range 0~199gu glossmeter measure all kinds of stone material surface gloss

granite, marble, terrazzo, sandstone, slate, artificial stone,polyester coagulation and many other stone products stone surface gloss measurement. all intelligent high-precision,high stability,boot can be measured, simple operation. measurement data for five consecutive years by the certification authority,traceable to the "simt" national verification center. unique national level standard black (h) white (l) calibration plate, in line with national standards,by metrology. the use of advanced optical design,stable and reliable measurement data..syi