Digital Surface Roughness Tester

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    2018-06-16 18:47

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Company Profile
Kairda Group Corporation
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2nd Floor, Building C, No. 3 courtyard, Jinbangyuan North Street, Xisanqi, Changping District, Beijing 100096, PR CHINA


Product Details

Digital Surface Roughness Tester with Bluetooth printing,0.001um display accuracy,Used for roughness testing of plane,Curved surface,small holes,deep grooves and cylindrical surface.

● 128 x 64OLED highlight digital display

● 20 kinds of measurement parameters

●  Can be connected to a computer and printer;

● With Bluetooth, support mobile APP

● Compatible with ISO, DIN, ANSI, JIS national standards

● Plastic shell, inspired by “TRANSFORMERS” stylish design, portable, high reliability.



Show you the most real pictures.


Different types of sensors can be selected to measure the roughness of surfaces, concave and convex surfaces, holes, grooves and other surfaces. Operating command via mobile app


●  Using DSP chip to control and data processing, high speed, low power consumption;

●  Intuitive and rich display information, can display all the parameters and graphics;

●  Residual quantity icon, prompting the user to charge;

●  Continuous working time: more than 20 hours.

●  Real-time clock settings and display, convenient data recording and storage.

●  With automatic dormancy, automatic shutdown and power saving function

●  Reliable control motor to go dead circuit and software design

●  Measurement information display, menu prompt information, false information and switch machine and other tips that information;

●  Can be connected to a computer and printer;

●  Optional different sensor, measuring platform, mini printer, extension rod and other accessories.

●  Plastic shell, inspired by “TRANSFORMERS” stylish design, portable, high reliability.

Technical Specification

Measuring Range

Ra: 0.005~16.000μm

Sample Length

0.25, 0.80, 2.50mm

Evaluation Length


Maximum Drive Stroke


Indication Accuracy


Indication Error




Data Storage

100 groups


Rechargeable Li-battery

Relative Humidity


Working Temperature


Standard Delivery

√Roughness Tester Main Unit          1

√KS100 Standard Pickup             1

√Sheath of Sensor                   1

√Roughness Test Plate Ra            1

√Adjustable Support                 1

√block bracket                      1

√Charger                         1

√USB charging cable                1

√Operating manual                 1

√Certificate                       1

√Guarantee card                   1

√Instrument container               1

Working Principle

When measuring the surface roughness of the workpiece, the instrument first puts the sensor on the workpiece to be measured.On the surface, then the starting instrument is measured, and the sensor is driven by the precision driving mechanism inside the instrument.The device glides along the measured surface for a straight line, and the sensor is measured by a built-in sharp touch needle.The roughness of the surface, when the roughness of the surface of the workpiece is measured, causes the needle to produce the displacement.The displacement changes the inductance of the inductance coil of the sensor, thus the output of the phase sensitive detector.The end produces an analog signal proportional to the measured surface roughness, which is amplified and level.After the conversion, the data acquisition system is entered, and the DSP chip is digital filtering for the collected data.The parameters are calculated, the results are given on the display.

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