• Portable Surface Roughness Tester

Portable Surface Roughness Tester

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The TIME TR100 Plus 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 process, dual OLED display and sensor, and allows for user selectable roughness units in Ra or Rz. It measures the surface roughness of flat, round and sloping plains. And “new model” measures grooves and recession up to 3.1 x 1.2 in (80 x 30mm). 


  • Metal frame, Handheld, Digital
  • Dual High contrast OLED display (one OLED display on Top, the other one OLED display at the front)
  • Two parameters Ra and Rz available at the push of a button
  • USB output for recharging  
  • Measurements in both British and Metric unit mode
  • Calibration fully adjustable at the key-board on the front
  • Protective shield for protecting sensor from damage  
  • Adjustable cut-off lengths according to ISO / DIN standard
  • Measures flat, outer cylinder and sloping surfaces
  • Measures metal and non-metal processing parts
  • Auto shutdown

Standard delivery

  • TR100 Plus main unit together with built-in transducer
  • Calibration certificate
  • Roughness standard
  • Battery charge with USB cable
  • Instruction manual 
  • Carrying case
Roughness parameterRa and Rz
IndicatorDual OLED display
Tracing length6mm
Cut-off lengths0.25mm/0.8mm/2.5mm
Evaluation length1.25mm/4.0mm/5.0mm
Measuring rangeRa: 0.05-10.0μm   Rz: 0.1-50μm
Radius and angle of the stylus pointDiamond, Radius : 10±1μ 
Angle: 90°(+5°or -10°)
Operating temperature0-40 ℃
Relative humidity< 90%
Power supply3.7V Lithium battery
Dimensions116 mm × 86 mm × 20 mm