High Precision Digital Roughness Meter Gauge designed for accurate surface roughness measurements. This device features a measurement accuracy of 0.001 μm and a range of Ra: 0.025 μm - 12.5 μm. It includes 13 measurement parameters such as Ra, Rz, R, Rq, Rt, Rp, Rv, Rmax, R3z, Rsk, Rs, Rsm, and Rmr. The display range accommodates values from 0.005-16 μm for Ra and Rq, and 0.02-160 μm for Rz, Ry, Rt, Rp, Rv, Rmax, and R3z. Additional values include Rs and Rsm at 1 mm, Rmr from 0-100% (%rt), and Rsk from 0-100%. The measuring range is ±20 μm, ±40 μm, and ±80 μm, with a display resolution of 0.001 μm. Equipped with various filters including Rc PC-rc, Gaussian, and d-p, this meter provides a display value variability of 6% and a display value error of 10%. The 128x64 OLED dot matrix LCD screen is self-illuminating for clear visibility. It operates with a built-in rechargeable lithium battery and has dimensions of 140 mm x 52 mm x 48 mm, weighing 440 g. Package includes one Surface Roughness Meter.