GAOTek Surface Roughness Tester

This Surface Roughness Tester has 5 sensors, 3.7 V Li-on battery, measuring range of 0.005 μm to 16 μm, 4 fitering methods with storage of 100 groups.




  • Five optional sensors for measuring special shaped work-pieces.
  • DSP chip controlled achieves high accuracy and fast testing speed.
  • Matrix LCD screen displays all parameters and data.
  • 13 parameters: Ra, Ry, Rq, Rz, Rt, RSm, RS, Rp, Rv, R3z, RSk, Rmax, Rmr
  • 4 filtering methods: RC, PC-RC, GAUSS and D-P.
  • High quality with ISO/ DIN/ CE/ JIS/ FCC standards.
  • Memory: 100 groups of measuring data.
  • Power supply: 3.7V rechargeable Li-ion battery.
  • Available PC software for data management and Excel reports.
  • Optional printer connecting by USB.


Technical Specifications

Measuring range 0.005 μm to16 μm
Resolution 0.001 μm
Maximum driving trip 0.7 in (17.5 mm)
Sample length/Range (L) 0.009 in (0.25 mm), 0.03 in (0.8 mm), 0.09 in (2.5 mm)/±20μm, ±40μm, ±80μm
Evaluation length 0.04 in (1.25 mm), 0.15 in (4 mm), 0.19 in (5 mm)
Filtering methods RC, PC-RC, GAUSS, D-P,
Error of indication ≤±10%
Variation of indication <6%
Memory 100 Groups
Operating temperature 32 °F to -40 °F (0 °C to -40 °C)
Standard configuration Main Unit, Standard sensor, Calibration block, Supporting platform, Power charger, Manual, Certificate, PC analysis software
Optional Accessories Measurement Platforms, optional sensors, printer
Dimensions 4.68 in x 1.85 in x 2.55 in (119 mm × 47 mm × 65 mm)
Weight 0.97 lb (440 g)


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