CALL; A.WIHARTA 081294124885 085778084789 087784022201   Info Produk Product Features Pocket Size Surface Roughness Tester for an Economical Price Surface Roughness Tester with a Large Measuring Range Measures Flat Surface Roughness, Outer Cylinder & Sloping Surface Both Ra & Rz measurements in Surface Roughness Testing External Calibration at keyboard Standard confirm to ISO and DIN Rechargable Batteries, work while you are charging A Surface Roughness Tester equiped with Li-ion battery and Backlight