The Digital Surface Roughness Meter is a high-precision instrument designed for accurate surface finish measurements of metals and intricate components. This professional-grade roughness tester ensures dependable results ideal for various applications in both workshops and laboratories. With a remarkable measurement range of 160 μm and an outstanding accuracy of 0.001 μm, it employs an advanced inductive sensor equipped with a diamond-tipped stylus of just 5 μm radius, offering unparalleled precision. The compact, lightweight design allows for independent operation, enabling quick and efficient on-site measurements without the need for additional equipment. Key features include a large internal memory capable of storing up to 200 sets of measurement data and waveforms, complete with USB data export functionality for seamless traceability and analysis. The meter provides a variety of measurement parameters such as Ra, Rz, Ry, Rq, Rt, Rp, Rv, Rmax, R3z, RSk, RS, RSm, and Rmr, ensuring comprehensive surface analysis. The display is rendered on a self-illuminating 128x64 OLED dot matrix LCD screen for clear readability. This robust device is powered by a built-in rechargeable lithium battery, making it an indispensable tool for professionals seeking accurate roughness measurements. Note that variations in color and size may occur due to different monitors and measurement techniques.