Portagauge™ Marine & Fire Safety Ultrasonic Thickness Gauges

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We now have a range of ultrasonic sensors to work aboard ships but also to test wall-corrosion of fire safety cylinders and gaseous fire extinguishing and fire sprinkler pipework so that testing can take place cleanly and non-invasively, without disturbing the system.

  • Our single-echo Portagauge™ 3 has been in service and upgraded many times for 20 years. Known as the “low cost Marine Superintendents Thickness Gauge” it is widely used in the shipping industry.
  • Small, hand-held, highly versatile and accurate it is now joined by the multiple-echo metal-only Portagauge™ 4 – so that it takes only the metal reading not its coating as well.

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Get in touch

You can reach us anytime via phone or email, we aim to respond to all enquiries within 24 hours (excluding weekends and bank holidays)


Come say hello at our Technical Laboratory.

Coltraco Ultrasonics
NETPark Research Institute
Joseph Swan Road
TS21 3FB

United Kingdom


Monday - Friday (excluding bank holidays) from 8:30am to 6:00pm, UK.

Tel (Sales & HQ): +44 20 7629 8475
Tel (Technical): +44 1740 618 240