GAOTek Portable Surface Roughness Gauge Tester

GAOTek portable surface roughness gauge tester is a new product.




GAOTek portable surface roughness gauge tester is a new product. This tester applies to production site and can be used to measure surface roughness of various machinery-processed parts, calculate parameters according to selected measuring conditions and clearly display all measurement parameters and profile graphs on LCD.



  • Multi-parameter measuring: Ra, Rz, Ry, Rq, Rp, Rm, Rt, R3y, R3z, Rmax, Rsk, Rku, S, Sm, tp, Rmr, Rpc, RzJIS
  • High accuracy inductance sensor
  • Four filtering methods of RC, PC-RC, GAUSS and D-P
  • Compatible with four standards of ISO, DIN, ANSI and JIS
  • 128×64 dot matrix LCD displays all parameters and graphs
  • ARM processor chip is used to control and process data with high speed and low power consumption
  • Built-in lithium-ion chargeable battery and control circuit have high capacity, without memory effect. Consecutive work time is longer than 20 hours
  • Design of mechanical and electrical integration is adopted to achieve small bulk, lightweight and easy usage
  • Built-in Bluetooth module enables drive the printer wirelessly to print all parameters and graphs
  • Mini USB interface enables communication with PC
  • Automatic switch off, memory and various prompt instructions
  • Accessories of curved surface sensor, measurement stand, sheath of pickup, adjustable supporter and extending rod are available to be optional purchased



Technical Specifications

Measuring Range Ra, Rq:0.005 µm to 16.00 µm Rz, R3z, Ry, Rt, Rp, Rm: 0.02 µm to 160 µm Sk: 0% to 100%, S Sm: 1 mm, Tp: 0% to 100%
Accuracy <±10%
Fluctuation of Display Value <6%
Testing Range Resolution
Automatic 0.01 um to 0.04 um
±20 um 0.01 um
±40 um 0.02 um
±80 um 0.04 um
Radius of Probe Pin 5 µm
Material of Probe Pin Diamond
Measurement Force of Probe 4 mN (0.4 gf)
Probe Angle 90°
Vertical Radius of Guiding Head 1.77 in (45 mm)
Maximum Driving Stroke 0.68 in (17.5 mm)
Cutoff length(l) 0.009 in, 0.03 in, 0.09 in (0.25 mm, 0.08 mm, 2.5 mm)
Sampling When Length=0.009 in (0.25 mm), Vt=0.135 mm/s, When Length=0.03 in (0.8mm), Vt=0.5mm/s, When Length=0.09 in (2.5 mm), Vt=1 mm/s
Returning Vt=1 mm/s
Profile Digital Filter RC, PC-RC, GAUSS, D-P
Operating Conditions Temperature 32 °F to 122 °F (0 °C to 50 °C)
Operating Conditions Humidity <80%RH
Power Supply Bulit-in Rechargeable Li-ion Battery
Dimensions 5.51 in x 2.04 in x 1.88 in (140 mm x 52 mm x 48 mm)
Weight 0.97 lb (440 g)


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