The Mitutoyo Surftest SJ-210 (178-561-02A) is a portable, handheld surface roughness tester A surf tester, also known as a profilometer, surface roughness tester, roughness gauge, or surface finish gauge. Features & Benefits: -2.4-inch, color, backlit, LCD touch screen that displays in vertical or horizontal orientations -Left and right hand data views in 16 languages -Measures 39 parameters -Micro-SD card that stores up to 10,000 results Applications: -Used in metrology to inspect and measure surface roughness in shop, metalworking, manufacturing and quality control (QC) applications.