When dimensional metrology machine inspection calls for surface-roughness measurement, the key decision is whether you need broad parameter reporting, a straightforward four-parameter handheld meter, a used instrument with accessories, or a repair project. These four choices span USD 200.00 to USD 500.00, so condition and measurement focus matter as much as the listed price.
Quick take
- Choose the GOYOJO Display Surface Roughness Tester Pocket-sized Roughness Measuring Meter when a new portable meter with an extensive stated parameter list and onboard data storage suits the job.
- Select the Surface Roughness Tester Portable Profilometer - Ra/Rq/Rz/Rt Profile Gauge Meter for a new meter centered on four named roughness measurements and one-button operation.
- Consider the Mitutoyo Surftest 211 Series 178 Surface Roughness Tester w/ Probe + Standard when its stated probe, standard, case, and power-supply package matters more than battery-powered operation.
- Treat the Mahr Federal Pocket Surface Roughness Tester USED as a parts or repair choice, because that is its explicitly stated purpose.
Listed-price comparison
The absolute span from the lowest to highest listed price is USD 300.00.
| Roughness tester | Listed price | Price bar |
|---|---|---|
| GOYOJO Display Surface Roughness Tester Pocket-sized Roughness Measuring Meter | USD 399.00 | |
| Surface Roughness Tester Portable Profilometer - Ra/Rq/Rz/Rt Profile Gauge Meter | USD 275.99 | |
| Mahr Federal Pocket Surface Roughness Tester USED | USD 200.00 | |
| Mitutoyo Surftest 211 Series 178 Surface Roughness Tester w/ Probe + Standard | USD 500.00 |
Decision matrix
- Need an extensive set of roughness outputs and raw-data storage: choose the GOYOJO Display model, which lists 14 parameters and storage for 500 raw-data sets.
- Need Ra, Rz, Rq, and Rt in a new portable format: the GOYOJO Portable Profilometer is the direct fit, with those four parameters named in its title and description.
- Need a used setup with a stated probe, calibration standard, stand/plate, case, manual, and DC power supply: the Mitutoyo Surftest 211 is the relevant configuration.
- Need an instrument for components or restoration work: the used Mahr Federal Pocket is specifically described for parts/repair.
Product notes
GOYOJO Display Surface Roughness Tester Pocket-sized Roughness Measuring Meter
The GOYOJO Display Surface Roughness Tester Pocket-sized Roughness Measuring Meter suits work that calls for a wide parameter set in a new handheld meter. Its stated coverage includes 14 roughness parameters, from Ra and Rz to Rsk, Rku, Rsm, and Rmr; it also lists 0.001 μm accuracy, an inductive detection principle, and a 320 μm measuring range. A 2.0-inch IPS display, 1,000mAh rechargeable battery, and storage for 500 raw-data sets support its portable, data-oriented focus. The trade-off is its USD 399.00 listed price, which is higher than the other new GOYOJO meter.
Surface Roughness Tester Portable Profilometer - Ra/Rq/Rz/Rt Profile Gauge Meter
The Surface Roughness Tester Portable Profilometer - Ra/Rq/Rz/Rt Profile Gauge Meter is the focused new choice when Ra, Rz, Rq, and Rt cover the measurements you need. The description pairs those four parameters with one-button measurement and a stated indication accuracy of 0.01 μm. Its stated measurement ranges are Ra 0.05-10.0 μm and Rz 0.1-50 μm, and the listed package includes a host and standard calibration block. At USD 275.99, it sits between the used Mahr and the GOYOJO Display model. Its limitation is scope: its four named testing parameters are narrower than the 14 listed for the GOYOJO Display meter.
Mahr Federal Pocket Surface Roughness Tester USED
The Mahr Federal Pocket Surface Roughness Tester USED is the lowest-listed route at USD 200.00. It is a used Mahr Pocket Surf III profilometer, making it a possible fit for someone seeking a named model for a parts or repair project. The central limitation is explicit: it is described as used, untested, and sold as-is for parts/repair. That makes it a distinctly different decision from the new GOYOJO options or the Mitutoyo unit described as powering on. Choose it when repair or component use is the intended purpose, rather than when the goal is a ready-to-use roughness-measurement tool.
Mitutoyo Surftest 211 Series 178 Surface Roughness Tester w/ Probe + Standard
The Mitutoyo Surftest 211 Series 178 Surface Roughness Tester w/ Probe + Standard is a USD 500.00 used option with a stated accessory group that includes a probe, case, manual, calibration standard, calibration stand/plate, and DC power supply. It is described as turning on and taking a reading with the standard; the stated reading on the 116 μin standard was 115. The included standard and stand make this configuration relevant when those items are important to the work. Its limitation is power portability: the onboard batteries either do not work or need charging, and the described reading check used mains power.
Final recommendation by use case
For a new portable meter with a broad stated parameter list, choose the GOYOJO Display Surface Roughness Tester Pocket-sized Roughness Measuring Meter. For work concentrated on Ra, Rz, Rq, and Rt, the Surface Roughness Tester Portable Profilometer - Ra/Rq/Rz/Rt Profile Gauge Meter keeps the focus simpler. Choose the Mitutoyo Surftest 211 Series 178 Surface Roughness Tester w/ Probe + Standard when its used condition, accessory package, and mains-powered operation fit your setup. Reserve the Mahr Federal Pocket Surface Roughness Tester USED for parts or repair work.
