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Products  > TQC Sheen Hull Roughness Gauge

TQC Sheen Hull Roughness Gauge

Ensure your test and inspection processes are ship-shape with an industry-leading hull roughness gauge from TQC Sheen. 


Our hull roughness gauges represent the next evolutionary step in hull roughness surveying and have been taking the marine industry by storm. 

They’re relied upon across the seven seas by ship operators, ship builders, ship repairers and coating manufacturers. 

The hull roughness increases with corrosion, pitting, plate undulation, mechanical damage, dry spray and biofouling. Monitoring the roughness of a ship’s hull plays an important role in controlling the vessel’s operating costs.  

Proper maintenance and the correct application of high-end anti-fouling coatings reduces the hydrodynamic effects. This offers significant savings on fuel consumption and CO2 emissions. 

Simple hull roughness testing

Our hull roughness gauge is easy to operate with a four-way directional push button. It offers you graphical representations; you can store data in multiple batches and analyze reports in Microsoft Excel®.  

Travel-sized hull roughness testing 

The whole system fits conveniently into a small rugged, waterproof case. It can be carried as travel luggage which simplifies any overseas travel plans considerably.  

Double dock hull roughness gauge inspection

A hull’s roughness is measured during in-docking and out-docking. Our device quickly measures the AHR value (average hull roughness) of sea going vessels.  

Hands-free hull roughness testing

Control our hull roughness control unit with just one hand. Plus its neck strap keeps your hands completely free when required.

Non-slip hull roughness inspection

The sensor unit is equipped with three non-slip wheels and a carbide tipped stylus. This moves horizontally over the ship’s hull while collecting precise measurements.  

Smooth hull roughness data inspection

Statistics including the time, date and location of each series of tests, plus the average hull roughness, are automatically calculated. Your results are stored in the control unit and can be used to create instant inspection reports in Microsoft Excel via a USB-cable. You can even add company logos and other details to create bespoke reports. 

More hull roughness insight 

We’ve made products for the marine industry for many years now and like to share our hull roughness expertise. Why not check out our blog that compares two variables of common roughness / smoothness testers? 

Special Care

Although it’s robust in design, our hull roughness tester is a precision engineered instrument…so keep it safe from knocks and drops! Here’s some simple advice on how to keep it in ship-shape condition for years to come:  

Always clean the hull roughness gauge after use with a soft, dry cloth 

Never use abrasive cleaning methods such as wire brushes, abrasive paper or aggressive cleaning agents. And don’t apply compressed air either.  

Keep the instrument in its case when not in use 

We recommend annual calibration. 

Safety precautions  

Keep out of the sun, excessive light exposure and humid environments 

Don’t use in very high or low temperature environments  

Switch off the hull roughness gauge before adjusting any electric component. 


SKU: DC9000

Applications: Abrasion Testing, Coating Testing, Corrosion Testing

Materials: Inks and Coatings, Metals

Accuracy: the greater of +/- 5 microns or <2%

Memory: four complete surveys, totalling over 10,000 readings

Location storage: point and click graphical display of the ship’s hull

Units: microns

Speed: 50mm/s

Interface: USB serial to PC connection

Power supply: four AA alkaline batteries

Sensor depth: 205mm

Sensor width: 80mm

Sensor height: 40mm

Sensor weight: approx. 630g

Control unit depth: 200mm

Control unit Width: 115mm

Control unit Height: 40mm

Control unit weight: approx. 350g

Minimum sample size: 50×50mm

Battery life: 20 hours with backlight ON / 200 hours with backlight OFF

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Success Stories

The problem

Some paint manufacturers have to undertake so many different types of tests that it’s hard to stay on top of the demands of their industry and the changing technologies that can best support them.

The solution

This was the case for our valued customer. They needed the equipment, skills, experience, and collaboration of a genuine partner. One offering personalized support and guidance identifying the correct inspection solution for each situation. We are always delighted to help.

The outcome

Daniel Marschall, President of Marschall Labs, said:


“The professionals at Industrial Physics took the time to understand the specific testing equipment needs of our lab. I can’t say enough about the excellent customer service and support they provide.”

Spares and Accessories

TQC Sheen HRG Calibration Plate for Hull Roughness Gauge

Calibration plate for TQC Hull Roughness Gauge

Calibration Available

Calibration Certificate

TQC Sheen Hull Roughness Gauge DC9000

Protective pouch for TQC DC9000

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