Best Roughness Testers in 2026

Portable, handheld device used to measure surface roughness in shop, metalworking, manufacturing, and quality control (QC) applications

2.4-inch, color, backlit, LCD touchscreen displays in vertical or horizontal orientation, left- or right-hand views, and has an Ingress-Protection (IP)-53 rating for water and dust resistance

Auto-calibration for accurate measurement of 39 parameters, five profiles, and storage of up to 10 measurement conditions, and one measured profile

The Surface Roughness Tester AMT211 complies with international standards ISO, DIN, ANSI, JIS. Users-friendly system and intuitive menu navigation, Multi-direction measurement such as lateral and upsid.

Sensor can work in the meter, also can work independent through 1.0m length cable (Max can be 3m).

Affordable Touch screen & button operational Surface Roughness Tester. Roughness parameters: Ra ,Rz, Rq, Rt, Rp ,Rv, R3z, R3y, Rz(JIS), Rs, Rsk, Rsm, Rku, Rmr, Ry(JIS), Rmax, RPc, Rk, Rpk, Rvk, Mr1, Mr2, resolution 0.001 micron. With bluetooth, also can by app to connect with mobile phone.

Detector used with Surftest SJ-210 and SJ-301 surface roughness testers in shop floor, machining, statistical processing, histogram-based data management, and quality control (QC) applications

Diamond stylus tip material and radius for precision surface roughness detection

Built-in skid force of 400mN, or less, and measuring forces such as 4mN (SJ-301), or 0.75mN (SJ-210)

★Testing parameters:Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx, RPc, Rk, Rpk, Rvk, Mr1, Mr2;

★Measuring range (um):Ra: 0.005-16.000;Rz: 0.02-160.00

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

The 2.4-inch color graphic LCD provides excellent readability and an intuitive display that is easy to use. The LCD also includesa backlight for improved visibility in dark environments.

The Surftest SJ-210 is a user-friendly surface roughness measurement instrument designed as a handheld tool that can be carried with you and used on-site.

Charging is reduced approximately one quarter of the time compared with conventional models. The detector supports a variety of measurement orientations and can perform measurements up against a wall surface or while facing upward. When combined with optional accessories such as a height gage adapter, the detector can perform measurements in various orientations and settings.

The Starrett SR160 Surface Roughness Tester has Bluetooth and a Color Graph Display

It performs a wide variety of parameters, from common Ra to more complex Rz1Max and Rsk parameters

The design makes the device simple to navigate, intuitive, and reliable

This surface roughness tester is compatible with four standards: ISO, DIN, ANSI, and JIS

This surface roughness tester uses USB/RS-232 data output to connect to a PC

Small in size, light in weight and easy to use

Pocket-sized economically priced, completely portable instrument which performs traceable surface roughness measurements on a wide variety of surfaces

One measurement allows for user to view any one of the four, switch-selectable, parameters: Ra, Rmax/Ry, Rz

Out-of-range (High or Low) and "battery low" signals are also displayed; simple battery replacement (9V)

Optional accessories:<br>1. RS232 Data Cable with software<br>If you need, please feel free to contact me. Thank you.</b>

Applications: Widely used in production site to measure surface roughness of various machinery-processed parts, calculate correspondingparameters according to selected measuring conditions and clearly display all measurement parameters.

Be compatible with four standards of ISO, DIN, ANSI and JIS. When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism inside the tester. The sensor gets the surface roughness by the sharp built-in probe.

❤❤(1)Digital display ( 128 x 64 OLED dot matrix display,digital / graphic display ),with back light gives exact and clearly reading although you stay at the somber conditions.Electromechanical integration design, small volume, light weight, easy to use.

❤❤(2)KR220 surface roughness tester with automatic dormancy, automatic shutdown and power saving function.Real-time clock settings and display, convenient data recording and storage.

❤❤(3)Pocket-size & economically price.Large measuring range suitable for most materials.Testing Parameters: Ra, Rz=Ry(JIS), Rq, Rt=Rmax, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr, Rx, RPc, Rk, Rpk, Rvk, Mr1, Mr2;Measuring Range: Ra: 0.005~16.000μm; Rz: 0.02~160.00μm.

The 2.4-inch color graphic LCD provides excellent readability and an intuitive display that is easy to use. The LCD also includesa backlight for improved visibility in dark environments.

The Surftest SJ-210 is a user-friendly surface roughness measurement instrument designed as a handheld tool that can be carried with you and used on-site.

Charging is reduced approximately one quarter of the time compared with conventional models. The detector supports a variety of measurement orientations and can perform measurements up against a wall surface or while facing upward. When combined with optional accessories such as a height gage adapter, the detector can perform measurements in various orientations and settings.

Large LCD Screen: High-quality probe tester features a large LCD screen with 2 selectable parameters; Ra and Rz

Multiple Applications: The small and compact roughness tester can be used for many applications by selecting from a variety of accessories; meets ISO and DIN standards

Accurate Readings: This surface tester features an arithmetic average of 1µin to 250µin

Extends the length of the detector to reach test area

Height Gage Adapter, For SJ-210 and SJ-310 Surface Roughness Tester, .25 In x .5 In

Surface Profile Gauge meets the standards of ASTMD-4417-B, IMOMSC.215(82), SANS5772, US Navy NSI 009-32, US Navy PPI-63101-000. Suitable for the laboratory and for use in harsh field conditions. Accurate, immediate and repeatable results.

The tungsten carbide tip will last for up to 20,000 readings and can then be easily replaced by the user in the field. Cost per test is significantly lower than other test methods.

The roughness tester Metric/Imperial Conversion and average calculation function.