Portagauge® 5

Multiple echo ultrasonic thickness gauge

The Portagauge® 5 is a multiple echo ultrasonic thickness gauge for measuring thicknesses of various metals and hard plastics, which ignores any coating up to 20mm in thickness.

P/N: 2099382-5

Get help buying? Chat now, email or call +44 207 629 8475

Send Pricing & Information


Multi echo ultrasonic thickness gauge

The Portagauge® 5 multi echo ultrasonic thickness gauge is a highly accurate and reliable thickness gauge for measuring the thicknesses of various metals and hard plastics, developed to meet BS EN 15317:2013 which is the standard for ultrasonic testing, characterisation and verification of ultrasonic thickness measuring equipment.  

The Portagauge® 5 is capable of ignoring any coating up to 20mm in thickness, allowing the material’s true thickness to be measured.  

We strive to offer the highest quality instruments, built with exceptional quality materials in the UK and remain competitively priced in the market worldwide through our unique R&D position. 

Some of the key advantages of Portagauge® 5 over our competitors: 

  1. It is able to ignore paint coatings up to 20mm in thickness, giving you the material’s true thickness readings accurate to +/- 0.1mm 
  2. Measurement units available in both metric (millimetres) and imperial (inches) 
  3. A-scan and oscilloscope trace functionality is included to assist your measurements, observe material condition and help verify correct return backwall echo to give you confidence that you are measuring the correct wall thickness 
  4. We have tried and tested a large number of different materials, including various metals and hard plastics, and have created a built-in database in our Portagauge® 5 containing speed of sound data of 12+ different materials pre-loaded in the unit for convenience which also includes an option to enter custom materials 
  5. For marine applications, it meets Classification Society requirements for marine thickness gauge measurement equipment and has an LCD backlight to allow working in dark, poor visibility spaces 
  6. Battery life up to 12 hours continuous use on a standard 9V PP3 battery for easy replacement, with battery saving mode – turns off after 30 seconds of inactivity 
  7. Technical support and advice available throughout the lifetime of the unit and we are here to help you with your application 


We have different sensor options to meet your inspection requirements: 

  • Our standard 2.5 MHz Dual-Element Sensor (Model No. DE2.5-14) is our most robust and widely used sensor option for metal thickness measurements. It has a 14mm diameter sensor face and has a measuring range of 1.5mm – 100.0mm. 
  • Our 5.0 MHz Dual-Element Sensor (Model No. DE5.0-10) is our second most popular sensor option, commonly used for measuring wall thicknesses of small pipes. It has a 10mm diameter sensor face and capable of measuring reliably on pipes no smaller than 25.0mm (1”) in diameter. It has a measuring range of 1.5mm – 100.0mm. 
  • Our 5.0 MHz Dual-Element Sensor (Model No. DE5.0-6) is mostly used for measuring wall thicknesses on your smallest pipes. It has a 6mm diameter sensor face and capable of measuring reliably on pipes no smaller than 15.0mm (1/2”) in diameter. It has a measuring range of 1.5mm – 50.0mm.
  • Our 2.25 MHz Dual-Element Sensor (Model No. DE2.25-12) is our recommended option for measuring highly attenuative materials such as engineering plastics, if the sensor options above do not meet your required application.

What's In The Box

  Portagauge® 5 Main Unit:Handheld and battery operated main electronic unit
  Standard 2.5 MHz (Model No. DE2.5-14) Dual-Element Ultrasonic Thickness Gauge Sensor:Most robust and widely used sensor option for metal thickness measurements
  5mm Metal Test Block:25mm x 25mm metal block which is 5mm thick for testing if the equipment is operating correctly
  Ultrasonic Couplant:For ensuring good contact between sensor and material
  User Manual:Contains further information regarding functionality of the instrument and how-to-use
  Calibration Certificate:As evidence that the unit has been tested and shown to be working before dispatch
  Robust Carrying Case:For portability and ease of carrying the equipment

Technical specifications

Technical Specification
  • Height: 168mm
  • Width: 82mm
  • Depth: 31mm
  • Weight: 300g
Measuring Range in Steel

1.50mm – 100.00mm

Material Types

Most metals and plastics, built-in database contains the following: Carbon Steel, Stainless Steel 304, Stainless Steel 316, Cast Iron, Ductile Iron, Copper, PVC, Lead, Nylon, Polyethylene (PE), Aluminium, Asbestos, Fibre Glass, Glass 


+/- 0.1 mm


+/- 0.01mm 

Measurement Units

Metric (mm) and Imperial (inches) 

Measurement Mode

Multiple Echo (ignores paint coating up to 20mm thick) 


2.25 MHz, 2.5 MHz, 5.0 MHz


Full 128 x 68 pixel graphics with backlight for working in poor visibility conditions 

Additional Features
  • Custom material sound velocity input enables users to test custom materials 
  • A-scan functionality to observe material condition and verify correct return backwall echo 
  • Oscilloscope trace to assist in performing a good measurement 
Power Supply

9V PP3 battery, up to 12 hours continuous use 

Operating Temperature

Main Unit: -10°C to +65°C    

IP Rating

Main Unit: IP 65 enclosure 

Sensor Type

Dual element with 0.9m LEMO-00 cable 

Sensor Options
  • 2.25 MHz – 12mm diameter sensor, for highly attenuative engineering plastics 
  • 2.5 MHz – 14mm diameter sensor, most robust and reliable for metal thickness measurements 
  • 5.0 MHz – 10mm diameter sensor, for measuring pipes no smaller than 25mm (1”) diameter 
  • 5.0 MHz – 6mm diameter sensor, for measuring pipes no smaller than 15mm (1/2”) diameter 
  • CE 
  • Meets marine classification society requirements for marine thickness gauging inspection equipment  
  • Coltraco is ISO 9001:2015 and ISO 14001 approved 
  • Main unit – 3 Year Warranty
  • Sensor –  1 Year Warranty
  • Technical Support – Lifetime of the unit

See the Portagauge® 5 in action.

Frequently asked questions

The Portagauge® 5 has a built-in database of over 12+ materials for testing. Some of the materials listed are: carbon steel, stainless steel 304, stainless steel 316, cast iron, ductile iron, copper, PVC, lead, nylon, polyethylene, aluminimum, asbestos and fibre glass. There is also an input for custom materials, to allow you to input test material not in the list.
The accuracy relates to the instrument’s ability to measure as close as possible to the true thickness value whereas the resolution determines to what fraction of a measurement unit the instrument can reliably measure. For the Portagauge® 5, it is capable of measuring the thickness of a material to an accuracy of +/- 0.1mm with a resolution of +/- 0.01mm.
The wall thickness measurement that is displayed on the Portagauge® 5 represents the remaining wall thickness of the material that is in good condition. This is measured by the reflected sound waves coming from the portion of the good material left in the structure. By comparing the wall thickness measurement from the Portagauge® 5 to the actual wall thickness of the material when it was in brand new condition allows the operator to determine the severity of the corrosion.
The Portagauge® 5 performs excellently on materials without a paint coating. The multi-echo technology works just as reliably on surfaces without a paint coating, as it does on surfaces with a paint coating.

Related Products

Portasonic® PLUS is a portable ultrasonic transit-time flow meter designed to measure, internally record, and export the flow rate within a pipe with precision and ease. Portasonic® PLUS uses a customisable pre-programmed database to allow it to work with a wide variety of pipe materials and liquid types as a highly versatile monitoring solution that can be adapted for specific applications.

P/N: 2618949-PSOPLUS


The Permaflow® is a fixed, clamp-on, ultrasonic transit time flow and heat meter that is non-invasive for measuring the flow rates of liquids containing less than 10% of gas/solid contents. It is mains powered, designed for 24/7 monitoring and is accurate to +/- 0.5% of measured value under ideal conditions.

P/N: 3578010-FLOW

Portatank® is a handheld, portable, and battery powered liquid level indicator designed to non-invasively, accurately, and reliably measure the level of liquid within a tank. Portatank® is suitable for application on vessels from 0.5m to 15m in diameter and can reliably detect the level of most clean liquids in metal, plastic, or glass vessels. It is also commonly used to detect oil levels in transformers in both pole mounted or pad mounted transformers.

P/N: 3141184-TANK