High Precision Digital Roughness Meter Gauge for measuring surface roughness with advanced specifications. This roughness meter provides superior measurement accuracy of 0.001 μm and a measurement range from 0.025 μm to 12.5 μm, encompassing 13 measurement parameters including Ra, Rz, R, Rq, Rt, Rp, Rv, Rmax, R3z, Rsk, Rs, Rsm, and Rmr. The display range covers various metrics: Ra, rq (0.005-16 μm), Rz, ry, rt, rp, rv, rmax, r3z (0.02-160 μm), Rs, rsm (1 mm), Rmr (0-100%), and Rsk (0-100%). With a measuring range of ±20 μm, ±40 μm, and ±80 μm, this device features a display resolution of 0.001 μm. It includes filters for Rc PC-rc, Gaussian, and d-p, with a display value variability of 6% and a display value error of 10%. The instrument utilizes a 128x64 OLED dot matrix LCD screen for clear visibility. Powered by a built-in rechargeable lithium battery, it boasts dimensions of 140 mm x 52 mm x 48 mm and a weight of 440 g. Package includes one surface roughness meter.