High Temperature Transducer

Dual element ultrasonic transducer designed for high-temperature, “in-service” thickness measurements and corrosion surveys across oil and gas, refining, energy and process sectors. This transducers great wear resistance allows for use on hot surfaces up to 570ºF. Measures remaining wall thickness from 0.06 inch all the way up to 9.8 inches - depending on temperature and material.

This is a twin element ultrasonic transducer designed for high-temperature, in-service thickness measurements and corrosion surveys across oil & gas, refining, energy and process sectors.

No cooling period required – vastly reducing inspection time and facilitating effective measurement.

For use on hot surfaces up to 570ºF (300ºC).

Measures remaining wall thickness from 0.06 inch to 9.8 inch (1.5 mm to 250 mm) – depending on temperature and material.

If you’re in the market for high-temperature probes, you’ve come to the right place. At Cygnus Instruments, we’ve honed our craft for over 40 years, making us the original pioneers in developing digital Multiple Echo technology. Our extensive experience has enabled us to offer a wide range of ultrasonic thickness gauges designed to withstand high-temperatures. 

Whether you’re in the industrial, aerospace, or oil and gas sector, we have the expertise to provide you with top-notch solutions. Our highly trained team members are here to assist you in finding the perfect high-temperature probe for your specific needs. To get started, call +1 346 223 0415. 

The Best Place to Purchase High Temperature Probes 

High-temperature probes, a vital tool in various industries, hold the key to precision and safety in extreme temperature environments. But what exactly are they, and how do they function under such intense conditions? We delve into the world of high temperature probes, unraveling the mysteries behind their design and operation. 

Discover how these robust instruments are engineered to endure scorching temperatures while delivering accurate measurements. We’ll also explore the innovative high-temperature probe Cygnus Instruments supplies, offering a glimpse into the cutting-edge technology that sets us apart. If you’re intrigued by the science behind these remarkable devices and their role in safeguarding critical processes, read on to uncover the fascinating details. 

What is a High-Temperature Probe? 

A high temperature probe is a specialized instrument engineered to withstand extreme heat conditions while delivering precise measurements. These probes are meticulously designed with durability and accuracy in mind, making them essential tools in various industries. High-temperature probes can be ultrasonic probes, specifically tailored for applications requiring thickness measurements in environments where temperatures soar. 

These probes excel in challenging testing scenarios, ensuring reliable data collection even in extreme conditions. Whether it’s in industrial settings, aerospace, or any field where temperature plays a critical role, a well-designed high-temperature probe is indispensable.  

Its ability to endure harsh conditions while providing accurate readings makes it an invaluable tool for professionals seeking dependable and consistent results in their operations. 

How Does it Work? 

Our high-temperature probes, designed for precision, are essential tools for various testing applications. These advanced probes operate on the principles of ultrasonic technology, a non-invasive method widely trusted for its accuracy and versatility. 

When in use, our probes emit high-frequency sound waves into the material being tested. These waves then travel through the material and bounce back to the probe’s sensor. By measuring the time it takes for the waves to return, our probes calculate the thickness of the material with exceptional precision. 

This technique is particularly useful for testing materials at high temperatures, ensuring reliability in extreme conditions. With Cygnus Instruments’ high-temperature probes, you can trust in accurate results for your testing needs. 

Introducing the High Temperature Ex Probe 

Here at Cygnus Instruments, we’ve developed our own high-temperature probe that’s designed with full compatibility with our ultrasonic thickness testing devices. Details regarding the Cygnus High-Temperature Ex Probe can be found below. 

Basic Information 

Our High-Temperature Ex Probe is the perfect companion for the Cygnus 1 Ex ultrasonic thickness gauge. Specifically designed for high-temperature environments, this probe allows you to measure hot surfaces continuously, eliminating the need for cooling periods. This not only reduces inspection time but also enhances the accuracy of your measurements. 

To ensure durability, the probe is engineered to be used with a special probe cable, which is wrapped in a glass-fibre outer braid for added protection. What’s more, the probe and probe cable are sold separately, offering you cost-effective replacement options. When it comes to high-temperature testing, our probe is designed to meet your needs, making it a valuable addition to your equipment arsenal. 


In terms of specifications, our High-performance T5BH-Ex temperature probe is designed for extreme conditions. With a robust build, this probe is your ideal companion for measuring temperatures on hot surfaces, capable of handling up to 300 degrees Celsius with ease. 

Key Features: 

  • Frequency Crystal Ø: 5.0 MHz 
  • Tip Size: 12 mm (0.47 in) Nominal 
  • Range in Steel: 2.5 – 50 mm (0.1 – 1.97 in) 
  • Connectors: Twin Microdot 10-32 
  • Surface Temperature Range: 50°C to 300°C (122°F to 572°F) 

Say goodbye to temperature-related testing challenges, as our T5BH-Ex excels in surface temperature ranging from 50°C to 300°C (122°F to 572°F).  

Suitable Applications 

As far as suitable applications go, these high-temperature probes find their applications in a multitude of industries and testing scenarios. These probes excel in environments where extreme heat is a constant factor, making them ideal for applications such as furnace and boiler inspections. 

They are also well-suited for heat exchanger assessments, ensuring the integrity of critical components in power plants and chemical facilities. Furthermore, our probes prove invaluable in aerospace, where they aid in non-destructive testing of materials subjected to high temperatures during flight. 

In essence, whether you need to evaluate structural integrity or monitor heat-related processes, our high temperature probes are your trusted partners in achieving accurate and reliable results. 

Why Purchase High-Temperature Probes from Cygnus Instruments? 

Cygnus Instruments, a UK-based company, has its origins in Non-Destructive Testing (NDT) for ships and maritime vessels. With over 40 years of experience, we have become a global leader in ultrasonic testing (UT) equipment, serving diverse industries worldwide. 

Our early focus on rugged and user-friendly units for ship surveyors and divers has left an enduring mark. Our products are renowned for their robustness, designed to excel in challenging environments while prioritizing reliability, accuracy, and ease of use. 

Innovation is at the core of Cygnus Instruments, having pioneered the “Multiple Echo” UT technique, widely adopted by major Classification Societies. We continue to deliver cutting-edge inspection equipment that stands the test of time. 

Through customer feedback and extensive R&D, we offer a comprehensive range of UT solutions, catering to various industries. Our equipment is suitable for hazardous locations, ship hull surveys, underwater inspections, asset integrity management, and specialized testing such as hatch cover tightness and flooded member detection. 

We hold ISO-9001 certification and intrinsically safe certifications (EX Veritas and CSA), ensuring exceptional quality and adherence to the highest standards. Choose us for reliable, accurate, and user-centric ultrasonic inspection equipment. 

Contact Our Team Now for More Details 

Feel free to get in touch with us anytime to discuss your high-temperature probe requirements. You can reach our dedicated team on +1 346 223 0415 or drop us an email at sales@cygnus-instruments.com. Alternatively, if you prefer a quick and convenient way to reach out, we have a user-friendly contact form available on our website. 

Our experts are ready to assist you with any inquiries, technical details, or custom solutions you might need. Don’t hesitate – contact us today and take the first step towards reliable and accurate temperature measurements with Cygnus Instruments. 

The Cygnus High-Temperature Probe can be used with the following thickness meters to measure remaining wall thickness of high-temperature, in-service assets without shutdown or isolation:

  • Cygnus 4+ General Purpose with live A-scan, intuitive menu and sequential data logging for easy reporting and analysis
  • Cygnus 6+ PRO boasting a full range of useful features for professional users, including A-scan, B-scan, comprehensive data logging and temperature compensation feature.


Temperature Transducer Cables

There are 2 options of cable to use with the High-Temperature Probe- the standard cable or the more robust, braided cable:


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