The TR100 surface roughness tester is designed with an advanced micro-processor, performs data acquisition, data processing and display of all test measurements. This instrument features an integrated processor, display and sensor, and allows for user selectable roughness units in Ra and Rz. In addition to measuring the surface roughness of flat, round and sloping plains, and TR100 measures grooves and recession up to 3.1 x 1.2 in (80 x 30mm).

Standard Package:

  • Processor integrated with pick-up
  • Roughness standard
  • Battery charger
  • Carrying case




  • Handheld, Electronics, Digital
  • Ra and Rz parameters standard available at the push of a button
  • Adjustable cut-off lengths according to DIN / ISO standard
  • Measurements in both British and Metric unit mode
  • Calibration fully adjustable at the key-board on the front
  • "Beep" sound after each measurement to inform the user that the measuring procedure is finished


Technical Specifications


  • Measures flat, outer cylinder and sloping surfaces
  • Measures metal and non-metal processing parts
  • Roughness parameters Ra, Rz
  • Measuring accuracy < 5% of reading
  • Measuring range Ra:0.05um-10.0um Rz:0.1um- 50um
  • Cut-off length 0.009in, 0.03in, 0.09in (0.25mm, 0.8mm, 2.5mm)
  • Tracing length 0.23in (6mm)
  • Measuring length 0.06in, 0.16in, 0.2in (1.25mm, 4.0mm, 5.0mm)
  • Dimensions 4.9 x 2.8 x 1.0in
  • Power supply 3.6V/2_ NiMH -batteries
  • Working temperature 32- 104°F ( 0- 40°C)
  • Weight 0.4lb (200g)




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