Digital Surface Roughness Tester Gauge with Ra 0.005~16.000μm Rz 0.02~160.00μm

128 x 64 OLED dot matrix display, digital / graphic display; highlight no perspective. Sample length (mm): 0.25, 0.80, 2.50. Evaluation length(mm): (1-5)L. Relative humidity: <90%. Working temperature: -20 ℃～ 40 ℃.

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