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Portable Surface Roughness Gauges

Why measure surface roughness - 

"Mechanical Measurement & Metrology - Surface finish"  By Darshan Panchal on Linkedin Slideshare explains it succinctly- 

  Concepts of surface metrology Darshan Panchal

Surface Roughness Gauge


Measuring range Ra: 0.05-10.0μm Rz: 0.1-50μm



  • Pocket-sized and economically priced
  • Uses a high speed microprocessor DSP
  • Uses an OLED screen, bright and without visual angle
  • Data output USB port
  • Large measuring range suitable for most materials
  • Measures flat, outer cylinder and sloping surface
  • Both Ra and Rz parameters in one instrument
  • Works on 3.7V rechargeable lithium battery
  • Real time battery indicator

TMR 120 Roughness

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Surface Roughness Gauge


Parameter            Ra(0.005μm ~ 16μm), Rz(0.02μm ~ 160μm), Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx

Features :  

  • Electromechanical integration design, small volume, light weight, easy to use.
  • Using DSP chip to control and data processing, high speed, low power consumption. 
  • Large range, parameters Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx.
  • 128 x 64 OLED dot matrix display, digital / graphic display, highlight no perspective.
  • Compatible with ISO, DIN, ANSI, JIS national standards.
  • Built-in lithium ion rechargeable battery and a charging control circuit, high capacity, no memory effect.
  • Working time more than 20 hours of continuous work.
  • Large capacity data memory, can store 100 groups of original data and waveform.
  • Real-time clock settings and display, convenient data recording and storage. 
  • With automatic dormancy, automatic shutdown and power saving function.
  • Measurement information display and menu prompt information
  • Full metal shell design, sturdy, compact, portable, high reliability.
  • Optional sensor surface, hole sensor, measuring platform, sensor, an extension rod and other accessories.

tmr 200 alone

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