Structural Surface Roughness Gauges & Testers
GAO’s structural surface roughness gauges & testers are instruments used to measure and evaluate the roughness characteristics of a surface. These products provide quantitative information about the texture, irregularities, and deviations present on the surface of a material or object. Our structural surface roughness gauges & testers are used in various industries, including manufacturing, engineering, construction, and quality control.

GAO’s structural surface roughness gauges & testers are composed of a probe or sensor, transducer, drive mechanism, display unit, data processing and analysis, power supply, and calibration standards.

The other common names of surface roughness gauges and testers are roughness measuring instruments, surface texture analyzers, profile roughness testers, roughness inspection devices, topography measurement tools, surface finish analyzers, roughness assessment gauges, texture testing instruments, profilometer gauges, finish quality analyzers, irregularity inspection tools, roughness evaluation testers, topographical profilers, roughness characterization devices, and texture quality testers.

Showing all 84 results

GAOTek Digital Surface Roughness Tester

SKU: GAOTek-SCD-205
GAOTek portable digital surface roughness gauge tester is applicated to measure surface roughness of various machinery-processed parts, especially for roughness measurement of complex parts, such as: Flat, Curved surface, Grooves and Holes.

GAOTek Digital Surface Roughness Tester

SKU: GAOTek-SRGT-108
Features Wide Range, Multiple parameters, Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr  2.128× 64

GAOTek Digital Surface Roughness Tester

SKU: GAOTek-SRGT-101
GAOTek Digital Surface Roughness Tester Advanced Portable Surface Roughness Tester SR-400T is suitable for surface roughness measuring on hard surface, widely used for measuring metal and non-metal parts, a variety of machining parts in the field of machinery processing manufacturing, testing, commodity inspection, and other quality control departments.

GAOTek Digital Surface Roughness Tester

SKU: GAOTek-SSRGT-134
This Digital Surface Roughness Tester has aluminum mold design, OLED display, Li-battery, DSP processor and working temperature of -4°F to 104°F .

GAOTek Digital Surface Roughness Tester

SKU: GAOTek-SSGT-136
This Digital surface roughness Tester has LCD display, 4 AAA battery, working temperature of 32 °F to 122 °F, USB interface with bluetooth adapter.

GAOTek Digital Surface Roughness Tester Gauge Meter

SKU: GAOTek-SCD-120
GAOTek digital surface roughness tester gauge meter adopts Computer technology, compatible with four standards of ISO, DIN, and JIS. Widely used in production sites to measure surface roughness of various machinery processed.

GAOTek Direct Sensor Roughness Gauge

SKU: GAOTek-SRGT-240
This Direct Sensor Roughness Gauge has Sensor resolution of 0.0016 μm/±50 μm to 0.016 μm/±500 μm, X direction of 1.18 in and Z direction of ±500 μm.

GAOTek Economical Surface Roughness Tester

SKU: GAOTek-SSRGT-135
GAOTek economical surface roughness tester is used in production site to measure surface roughness of various machinery processed parts, calculate corresponding parameters according to selected measuring condition sand clearly display all measurement parameters.

GAOTek Engine Oil Pressure Tester Gauge

SKU: GAOTek-SRGT-203
This Engine Oil Pressure Tester Gauge has Type Auto Timing Tool, Size 13.77 in X 9.84 in X 3.93 in (35 cm X 25 cm X 10 cm) and Weight 5.5 lb (2.500 kg).

GAOTek Floor Thickness Roughness Tester

SKU: GAOTek-SRGT-235
GAOTek floor thickness roughness gauge tester is mainly used for nondestructive testing of concrete structures.

GAOTek Handheld Coating Gauge Paint Tester Meter

SKU: GAOTek-SRGT-204
This Handheld Coating Gauge Paint Tester Meter has Excitation source Up to 50 kV/200 μA, Display System 4.3 in (109.22) and Data Processing Built-in 32 GB storage.

GAOTek Handheld Digital Surface Roughness Tester Meter

SKU: GAOTek-SRGT-244
This Handheld Digital Surface Roughness Tester Meter has a Measuring range of 0 in to 0.25 in, Accuracy of ±3 um and Resolution of 1 um.

GAOTek High Accuracy Surface Roughness Tester

SKU: GAOTek-SRGT-208
This High Accuracy Surface Roughness Tester has Sample length of 0.0098 in, 0.003 in, 0.009 in, Lead head radius 1.4 in an Indication error ≤ ±7%.

GAOTek High Precision Digital Surface Roughness Tester

SKU: GAOTek-SSRGT-139
GAOTek high-precision roughness instrument using needle drawing method, needle method, also known as touch-pin method.

GAOTek Hydraulic Surface Roughness Tester

SKU: GAOTek-SCD-203
GAOTek hydraulic surface roughness tester 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.

GAOTek Measuring Instrument Galvanized Coating Thickness Gauge Tester

SKU: GAOTek-SCD-112
GAOTek measuring instrument galvanized coating thickness gauge tester is the introduction of a new generation of thickness gauges, breakthrough technology for your maximum to solve a variety of measurement problems.

GAOTek Paint Film Thickness Tester Measuring

SKU: GAOTek-SRGT-201
This Paint Film Thickness Tester Measuring has Measuring Range 0 um to 1300um/0 mil to 51.2 mil, Resolution 0.1 um/0.01 mil and Accuracy 3 %.

GAOTek Paper Surface Roughness Tester

SKU: GAOTek-SRGT-102
GAOTek Paper surface roughness tester measuring principle of this instrument is the rectangular coordinate measuring method

GAOTek Pocket Surface Roughness Tester

SKU: GAOTek-SRGT-109
GAOTek Pocket surface roughness tester surface roughness measuring instrument TR100 is a pocket and portable surface roughness measuring instrument.

GAOTek Popular Sale Roughness Tester

SKU: GAOTek-SRGT-243
This Popular sale roughness tester has storage Temperature of 14 °F to 140 °F, Relative Humidity of <80% and Measuring Range of 0 μm to 6500 μm .

GAOTek Portable Digital Roughness Meter

SKU: GAOTek-SSRGT-133
This Portable Digital Roughness Meter has OLED display, 100 groups of data storage, working time of 20 hours, USB interface and full metal body.

GAOTek Portable Digital Surface Roughness Tester

SKU: GAOTek-SSGT-137
GAOTek portable digital surface roughness tester is 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.

GAOTek Portable High-Precision Digital Surface Roughness

SKU: GAOtel-SCD-119
This Portable High-Precision Digital Surface Roughness has sample length as 0.25 in or 0.8 in, or 2.5 in),color screen LCD, and an USB socket.

GAOTek Portable Surface Roughness Gauge Tester

SKU: GAOTek-SSGT-131
GAOTek portable surface roughness gauge tester is a new product.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-SRGT-210
This Portable Surface Roughness Tester has Division value of 0 units to 199.9 gloss units, Stable value > 0.5 units and Indication error of 3.0 units.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-OET-139
GAOTek portable surface roughness tester is a new product.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-SCD-206
GAOTek portable surface roughness tester adopts long life light source, good repeatability, small volume, high precision and good stability.

GAOTek Portable Surface Roughness Tester

SKU: GAOtek-SCD-117
GAOTek portable surface roughness tester adopts long life light source, good repeatability, small volume, high precision and good stability.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-SCD-111
GAOTek portable surface roughness tester allows users to view surface roughness waveforms on the built-in, color LCD display.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-OENVT-118
This surface tester has a 0.7 in drive stroke, 0.001 μm accuracy, ±10% error, 6% variability, 20 hours of continuous working time, and a Li-battery.  

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-SSGT-132
GAOTek portable surface roughness tester is compatible with four standards of ISO, DIN, ANSI and JIS and is widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding parameters according to selected measuring conditions and clearly display all measurement parameters.

GAOTek Portable Surface Roughness Tester

SKU: GAOTek-SCD-204
GAOTek portable surface roughness tester can measure the roughness of various machined parts, such as plane surface, bevel surface, outer cylindrical surface, curved surface, small hole, groove and car axle etc.

GAOTek Portable Surface Roughness Tester Gauge

SKU: GAOTek-SCD-208
GAOTek surface roughness tester is a high accuracy instrument for measuring surface roughness.

GAOTek Surface Rough Meter Tester

SKU: GAOTek-SRGT-107
Features Stylish design with plastic shell, inspired by “TRANSFORMERS”;  Visual waveform display;  Electromechanical integration design, small volume, light weight, easy

GAOTek Surface Roughness Gauge

SKU: GAOTek-SSGT-138
GAOTek surface roughness measuring instrument for laboratory and production sites, can measure the surface roughness of a variety of machined parts, including planes, bevels, outer cylindrical surfaces, curved surfaces, small holes, grooves and axles, etc., according to selected measurements Conditions Calculate the corresponding parameters and clearly display the measurement results and contour graphs on the LCD.

GAOTek Surface Roughness Gauges Tester

SKU: GAOTek-SRGT-104
Features Automatically interpret the sound time and amplitude of the first wave, without manual interpretation, and directly display the crack

GAOTek Surface Roughness Measuring Instrument

SKU: GAOTek-SCD-118
GAOTek surface roughness measuring instrument is a handheld instrument suitable for on-site and mobile measurement.

GAOTek Surface Roughness Measuring Instrument

SKU: GAOTek-SCD-115
GAOTek surface roughness measuring instrument is for laboratory and production sites, can measure the surface roughness of a variety of machined parts, including planes, bevels, outer cylindrical surfaces, curved surfaces, small holes, grooves and axles, etc.

GAOTek Surface Roughness Measuring Meter Tester

SKU: GAOTek-SRGT-105
GAOTek The Surface Roughness Tester adopts Computer technology, compatible with four standards of ISO, DIN, and JIS. Widely used in production sites to measure surface roughness of various machinery processed.

GAOTek Surface Roughness Meter Gauge

SKU: GAOTek-SRGT-103
Features Integrated design, small volume, light weight, simple structure, easy to use, Intuitive readings and automatic shutdown function.  Public and

GAOTek Surface Roughness Tester

SKU: GAOTek-OET-142
GAOTek Surface Roughness Tester is a new generation portable surface roughness meter launched by our company.

GAOTek Surface Roughness Tester

SKU: GAOTek-OET-134
GAOTek surface tester can measure the roughness of various machined parts, such as plane surface, bevel surface, outer cylindrical surface, curved surface, small hole, groove, and car axle etc.

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-202
This Surface Roughness Tester has Stroke length 0.23 in (6 mm), Indication accuracy 0.01 Indication error and ±(7% to 10%).

GAOTek Surface Roughness Tester

SKU: GAOTek-SCD-202
GAOTek surface roughness tester is a cost-effective roughness measuring equipment which supports a dozen parameters.

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-237
GAOTek surface roughness tester is used for different sensors and measuring platforms, mini printers, extension rod and other accessories.

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-234
GAOTek surface roughness tester on hard surfacewidely used for measuring metal and nonmetal parts, a variety of machining parts in the field of machinery processing manufacturing, testing, commodity inspection and other quality control departments.

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-241
This Surface Roughness Tester has Stylus static measuring force 4 mN (0.4gf), Stylus angle 90° and Static measuring force 0.98 in (25 mm).

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-110
GAOTek Surface Roughness Tester 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.

GAOTek Surface Roughness Tester

SKU: GAOTek-SRGT-106
GAOTek Surface Roughness Tester Widely used in production sites to measure the surface roughness of various machinery-processed parts, calculate corresponding parameters according to selected measuring conditions and clearly display all measurement parameters. 

GAOTek Surface Roughness Tester

SKU: GAOTek-SCD-116
GAOTek surface roughness tester is widely used in production sites to measure surface roughness of various machinery-processed parts, calculate corresponding and clearly display all measurement parameters.

GAOTek Surface Roughness Tester

SKU: GAOTek-SCD-114
GAOTek surface roughness tester is a high cost-effective surface measurement device.

GAOTek Surface Roughness Tester

SKU: GAOTek-SCD-113
GAOTek surface roughness tester is a cost-effective roughness measuring equipment which supports a dozen parameters.

GAOTek Surface Roughness Tester

SKU: GAOTek-SCD-201
GAOTek surface roughness tester is a high accuracy instrument for measuring surface roughness.

GAOTek Surface Roughness Tester & Gauge

SKU: GAOTek-SCD-207
GAOTek surface roughness tester is widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding parameters according to selected measuring conditions and clearly display all measurement parameters.

GAOTek Surface Roughness Tester Digital

SKU: GAOTek-SRGT-230
This Surface Roughness Tester digital has Accuracy of Less than ±10%, Power supply of Built-in Lithium-ion battery and Parameters of 22 kinds

GAOTek Surface Roughness Tester Digital Display

SKU: GAOTek-SRGT-231
This Surface Roughness Tester Digital Display Has Measuring Range of 0.05 um to 10.0 um, Storing Temp -13 °F to 140 ° F and Power of 3.6 V.

GAOTek Surface Roughness Tester Meter Gauge

SKU: GAOTek-SRGT-205
This Surface Roughness Tester Meter Gauge has Maximum drive stroke length 0.7 in (17.5 mm) , Resolution 0.001 μm and Filtering methods RC, PC-RC, GAUSS, D-P.

GAOTek Surface Roughness Tester Meter Gauge

SKU: GAOTek-SRGT-206
This Surface Roughness Tester Meter Gauge has Power Li-ion battery rechargeable, Dimensions  5.5 in x 2.04 in x 1.88 in and Weight 0.97 lb (440 g).

GAOTek Surface Roughness Testing Instrument

SKU: GAOTek-SSGT-140
This Surface Roughtness Testing Instrument has measuring range of 0 to 1999 gloss units, light source by lens and division value of 0.1 gloss units.

GAOTek Thickness Gauge Meter

SKU: GAOTek-SRGT-233
GAOTek thickness gauge meter adapted to all kinds of materials, which are good conductor of ultrasonic wave such as metals (steel, cast iron, aluminum, copper and etc), plastic, ceramics, composites, epoxies, glass and etc. 

GAOTek Ultrasonic Surface Roughness Gauges Meter

SKU: GAOTek-SRGT-236
GAOTek ultrasonic surface gauges roughness gauges meter is used for measuring the thickness of metal materials, pipes, pressure vessels, sheet metals (steel, aluminum), plastic, steel pipes, PVC pipes, glass and other materials.

GAOTek Ultrasonic Thickness Gauges

SKU: GAOTek-SRGT-242
This Ultrasonic Thickness Gauges has Scan mode 25 times/second, Frequency bandwidth 0.5 MHz to 15MHz and Speed of sound 1000 m/s to 9999m/s.

Gaotek Ultrasonic Thickness Measurement Equipment Meter Tester Instruments

SKU: GAOTek-SRGT-207
This ultrasonic thickness measurement Equipment meter Tester instruments has Measuring range (metric/imperial) 0.05 in to 8 in (1.0 mm to 245mm) , Resolution 0.0003 in (0.1 mm) and Power supply 4 x 1.5 AAA.

Hydraulic Professional System Highly Sophisticated Inductance Sensor Surface Roughness Tester – Automatic shutdown

SKU: GAOTek-SRGT-224
Be compatible with the 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.

Surface Roughness Tester with Calibration (Test Any Surface)

SKU: GT00Y300ZM
Key Features Specifications Key Features External calibration keyboard Pocket size and easy to carry Select freely from Ra and Rz

Surface Roughness Tester with High Degree Integration (Ra,Rz)

SKU: GT00Y300ZZ
Key Features Specifications Key Features Pocketsize surface rough meter is a new intelligence instrument which is specialized in measuring Gather

Surface Roughness Tester with Large parameter (National Std)

SKU: GT00Y300ZJ
Key Features Specifications Key Features Real-time clock settings and display, convenient data recording and storage With automatic dormancy, automatic shutdown

Surface Roughness Tester with Long Range (Ra, Rz, Rq, Rt)

SKU: GT00Y300ZL
Key Features Specifications Key Features External calibration keyboard Pocket size and easy to carry Select freely from Ra, Rz, Rq,Rt

GAOTek Surface Roughness Gauge with Metric and Imperial Conversion

SKU: GT00Y300ZW
This Surface Roughness Gauge with Metric and Imperial Conversion is a handheld gauge for fast and accurate measurement of the peak-to-valley height for the surface profile of blast cleaned surfaces.

Surface Roughness Gauge with Highly Inductance Sensor

SKU: GT00Y300ZV
This Surface Roughness Gauge with Highly Inductance Sensor is designed to measure surface roughness of various machinery-processed parts using the parameters Ra, Rz, Rq, Rt and the radius of probe pin measures 5 µm.

Surface Roughness Gauge with Multiple Parameter Measurement

SKU: GT00Y300ZU
This Surface Roughness Gauge with Multiple Parameter Ra, Rz is designed to measure surface roughness of various machinery-processed parts and the measuring range of Ra from 1.000 µin to 400.0 µin (0.05 um to 10.00 um).

GAOTek Shore Hardness Tester with Average Calculate Function

SKU: GT00X700ZY
This Shore Hardness Tester with Average Calculate Function is designed to determine the indentation hardness of materials ranging from cellular products to rigid plastics.

GAOTek Shore Hardness Tester with Peak Value Deposit Function

SKU: GT00X700ZZ
This Shore Hardness Tester with Peak Value Deposit Function is designed specially to measure sponge hardness with a measuring range varying from 0 ~ 100 HF.

GAOTek Surface Roughness Gauge with 4 Parameters (Inductance Sensor)

SKU: GT00Y300ZT
This Surface Roughness Gauge with 4 Parameters(Inductance Sensor) Ra, Rz Rq and Rt is designed to measure surface roughness of various machinery-processed parts in the measuring range of Ra, Rq from 0.020µinch~ 629.9µinch(0.005µm ~ 16.00µm).

GAOTek Surface Resistance Tester with Quick Response (Hi-Precise)

SKU: GT00UH00ZZ
This Surface Resistance Tester with Quick Response (Hi-Precise) is designed to measure the resistance on object surface and the resistance to ground of an object to different static fields.

GAOTek Surface Roughness Tester with data memory (National Std)

SKU: GT00Y300ZK
This Surface Roughness Tester with data memory (National Std) is designed for surface roughness shape measurement with various parameters and stores 100 groups of large capacity data memory.

GAOTek Surface Roughness Tester with Sampling Len (2 Way Charging)

SKU: GT00Y300ZN
This Surface Roughness Tester with Sampling Len (2 Way Charging) is designed to measure plane surface, canonical surface and cylindrical surface of various sampling length 0.25, 0.08 and 2.50.

GAOTek Surface Roughness Tester with H Speed (Large Capacity)

SKU: GT00Y300ZI
This Surface Roughness Tester with H Speed (Large Capacity) is designed using DSP chip to work in high speed and used to evaluate surface texture with various parameters.

GAOTek Surface Roughness Tester with Wide Measuring Range

SKU: GT00Y300ZH
This surface roughness tester with wide measuring range is designed to test the ex-circle, flat surface, conical surface of all types of metals and non-metals.

Shore Hardness tester with Crystal Time (High Resolution)

SKU: GT00X700ZV
Key Features Specifications   Key Features With INTEGRATED (built-in) PROBE and designed to determine the penetration hardness of rubber, elastomers

GAOTek High Speed Surface Roughness Tester (Data Storage)

SKU: GT00Y300ZF
This High Speed Surface Roughness Tester (Data Storage) is designed by huge data storage that stores 100 item of raw data and waveforms and can be used to measure surface roughness of various machinery-processed parts in the production site.

Digital Hardness Durometer (Probes, Wide Measure Range)

SKU: GT00X700ZU
Key Features Specifications   Key Features With INTEGRATED (built-in) PROBE and designed to determine the penetration hardness of rubber, elastomers

Surface Roughness Tester With DSP Chip (Electromechanical)

SKU: GT00Y300ZY
Overview Key Features Specifications Overview GAOTek Surface Roughness Tester measures surface textures in line with international standards. Key Features Electromechanical integration

GAOTek Surface Roughness Gauge With Data Record (Auto Shutdown)

SKU: GT00Y300ZX
This Surface Roughness Gauge With Data Record (Auto Shutdown) is designed by real-time clock setting for data record and storage and can be used to measure surface roughness of various machinery-processed parts in the production site.

GAO Tek’s structural surface roughness gauges & testers have the following functions:

  • Measurement: Our structural surface roughness gauges & testers accurately measure the roughness characteristics of a surface, providing quantitative data on height variations and irregularities.
  • Evaluation: GOA’s structural surface roughness gauges & testers evaluate the quality and suitability of a surface for its intended application, ensuring it meets required specifications and standards.
  • Quality control: Our structural surface roughness gauges & testers are used in quality control processes, ensuring manufactured products have the desired surface finish and meet necessary quality standards.
  • Process optimization: GAO Tek’s structural surface roughness gauges & testers help optimize manufacturing processes by monitoring and analyzing surface roughness data, making adjustments and improvements to achieve the desired surface quality.
  • Surface integrity assessment: Our structural surface roughness gauges & testers assess the integrity of surfaces, detecting potential issues such as cracks, wear, corrosion, or defects that may impact performance or longevity.

GAO Tek’s structural surface roughness gauges & testers are rugged, versatile, and precision measurement instruments. They comply with applicable industry standards such as ISO 4287, ISO 25178, ANSI/ASME B46.1, JIS B 0601, and DIN EN ISO 1302.

Our structural surface roughness gauges & testers help our customers comply with relevant U.S. government regulations such as:

  • Federal Communications Commission (FCC)
  • National Institute of Standards and Technology (NIST)
  • International Electrotechnical Commission (IEC)
  • Quality Management Systems (e.g., ISO 9001)

GAO’s structural surface roughness gauges & testers help our clients in complying with relevant Canadian government regulations such as:

  • Health Canada Regulations
  • Industry-Specific Regulations
  • Electromagnetic Compatibility (EMC) Standards
  • Provincial and Territorial Regulations

Our structural surface roughness gauges & testers have the following applications:

  • Manufacturing: GAO’s structural surface roughness gauges & testers ensure the quality and consistency of manufactured products by measuring and controlling surface roughness, helping to achieve desired surface finishes and functional requirements.
  • Engineering and construction: Our structural surface roughness gauges & testers are used to evaluate the surface roughness of structural components, ensuring their suitability, durability, and performance in engineering and construction projects.
  • Automotive and aerospace: GAO Tek’s structural surface roughness gauges & testers are used in the automotive and aerospace industries by measuring and evaluating surface finishes of engine parts, turbine blades, and aircraft structures, ensuring optimal performance and safety.
  • Quality control and inspection: Our structural surface roughness gauges & testers are used in quality control and inspection processes across industries, verifying that surface finishes meet specified requirements and identifying deviations or defects.
  • Research and development: GAO’s structural surface roughness gauges & testers are used in research and development activities to characterize and analyze surface properties, studying the effects of materials, coatings, and processing techniques on surface roughness and performance.

Our structural surface roughness gauges & testers can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.