SR210 Surface Roughness Tester delivers industry-leading performance:
✅ Wide testing range | ✅ Accurate measurement
✅ Stable operation | ✅ Intuitive user interface
✅ Data memory | ✅ High-visibility OLED display
Innovative curved surface sensor with circular guide head adapts to complex geometries.
Trusted by professionals for precision surface analysis across industries.
17 Measured Parameters:
Ra, Rq, Rz, Rv, Rp, Rm, Rt, RS, RSm, R3z, R5z, R3y, Rz (JIS), Rsk, Rku, Rmax, Rpc
Precision Testing Ranges:
Ra/Rq: 0.005-16μm
Rz/Ry/Rt/Rp/Rv/Rmax/R3z/Rz(JIS): 0.02-160μm
RS/RSm: 1mm
Rmr: 0-100% (%Rt)
Rsk/Rku/Rpc: 0-100%
Dedicated RS210 Sensor: Built-in calibration curve ensures high linearity accuracy
Advanced Parameter Support: Rmax, Rsk, Rku, Rpc
Remote Software Upgrades
High-Precision Sensor Technology
Curved Surface Sensor: Circular guide head adapts to diverse conditions
ARM Processor: Delivers powerful computing and control performance
Industry-Specific Parameter Profiles
Dual Printing Options: Wireless & Bluetooth data transmission
OLED Display: Self-luminous, full viewing angle, wide-screen

Optional Sensor of Surface Roughness Tester
Full-Series Sensor R&D: Independent development of complete sensor portfolio.
Annular Guide Head Design: Enables precision measurement on complex workpiece surfaces.
Custom Sensor Solutions: Tailored to user-specific requirements.
Future 2μm Stylus Development: Advancing ultra-fine measurement capabilities.
Optimized Internal Structure: Enhanced testing stability and sensor reliability.
LEMO Hot-Swappable Interface: Industrial-grade connectivity for seamless host integration.
Can be used to measure plane, cylindrical surface roughness. Also can used to measure the hole surface that hole diameter is larger than 5mm the maximum depth is less than 22mm.

Can be used to measure the surface roughness of work piece that curvature radius of concave convex surface larger than 6mm. Also can used to measure the planar, cylindrical used with platform.

Can be used to measure the deep groove that the width is larger than 2mm, the depth is less than 3mm, or the surface roughness of steps that height less than 3mm. Also can used to measure the planar, cylindrical used with platform.

Can be used to measure the deep groove that the width is larger than 3mm, the depth is less than 10mm, or the surface roughness of steps that height less than 10mm. Also can used to measure the planar, cylindrical used with platform.

Parameter | Ra, Rz, Ry, Rq, Rt, Rp, Rv, Rmax, R3z, RSk, RS, RSm, Rmr |
Testing range | Ra:0.025-12.5μm |
Display range | Ra, Rq:0.005-16μm;Rz, Ry, Rt, Rp, Rv, Rmax, R3z:0.02-160μm; RS, RSm:1mm; Rmr:0-100%(%Rt);Rsk:0-100% |
Measuring range | ±20μm, ±40μm, ±80μm |
High resolution | 0.001μm |
Filter | RC, PC-RC, GAUSS, D-P |
Sampling Length | 0.25mm,0.8mm,2.5mm |
Evaluation Length | (1-5)l(optional) l is sampling length |
Max. drive stroke length | 17.5mm/0.7inch |
Min. drive stroke length | 1.3mm/0.052inch |
Indication Error | ≤±10% |
Indicated value variability | ≤6% |
Display mode | 128×64 OLED Lattice liquid crystal /self luminescent/ |
Power | Built-in rechargeable Lithium battery |
Tester Dimension | 140mm×52mm×48mm |
Tester Weight | 440g |
Name | Quantity | Name | Quantity |
Host | 1 | Standard templet | 1 |
Stand sensor | 1 | Sensor protective cover | 1 |
Power Adaptor | 1 | USB cable | 1 |
Test bracket | 1 | U disk(USB2.0) | 1 |
Specification | 1 | Warranty card | 1 |
Certification | 1 | Packing list | 1 |