Surface Roughness Tester with Calibration (Test Any Surface)



Key Features

  • External calibration keyboard
  • Pocket size and easy to carry
  • Select freely from Ra and Rz parameters
  • Wide range of measurement

Technical Specifications

 Testing parameters (μm) Ra, Rz
Stroke length 6mm or 0.2 inch
Sample length 0.25, 0.80, 2.50 mm or 0.01, 0.03, 0.1 inch
Evaluation length  1.25, 4.0, 5.0 mm or 0.05, 0.16, 0.2 inch
Measurement range (μm) Ra: 0.05 ~ 10.0 Rz: 0.1~50
Error ±10%
Variability <12%
Contacting pin round diameter 10 μm ± 1 μm
Battery 3.7V Li
Size 106x70x24 mm or 4.2×2.8×0.9 inch
Weight 200g
Stylus static force ≤0.016N
Force measuring rate of change  ≤800N/m
Operating condition Temperature -20 ~ 60°C (-4~140°F); Relative humidity <90%


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