In process industries – where uptime, safety compliance and long-term asset integrity directly determine productivity – reliable inspection tools are essential. (read more)

For commercial diving teams under pressure to deliver accurate UT data quickly and safely, the Cygnus Underwater Diver Held Gauge sets a new benchmark. Built specifically for subsea and inland corrosion surveying, it delivers fast, accurate thickness measurements – even through coatings and heavy corrosion, while drastically reducing the operational burdens typically placed on dive... (read more)

More than three years after the launch of the Cygnus 1 Ex, Cygnus Instruments Ltd continues to see this intrinsically safe ultrasonic thickness gauge (UTG) stand out as one of its most trusted and celebrated solutions for hazardous environments. (read more)

For over three decades, Cygnus has set the standard for underwater ultrasonic thickness measurement. The original Cygnus 1 Underwater gauge earned a reputation for rugged reliability and unmatched accuracy in the harshest conditions. Today, that legacy continues with the new Cygnus Underwater... (read more)

Hazardous area operators face relentless pressures: high temperatures, volatile conditions, tight compliance expectations - and corrosion that never waits. (read more)

Cygnus Instruments will be showcasing a selection of our ultrasonic testing equipment at upcoming events. (read more)

Cygnus 1 Ex is a certified, intrinsically safe gauge favoured by oil and gas operators for its safety, efficiency, and accuracy. It enhances safety by being rated for Zone 0, allows inspections during live operations to reduce downtime, lowers costs by eliminating shutdowns and coating removal, and supports asset integrity through reliable measurements for proactive mainten... (read more)

The latest addition to the Cygnus diver range, the new Cygnus Underwater, is an incredible advance on its predecessor, with a host of smart new features, specially designed to operate seamlessly in an array of diverse conditions, simultaneously accomplishing greater accuracy and usability. (read more)

Cygnus Underwater is engineered for precision in the most demanding underwater environments - whether you’re inspecting offshore platforms in the open ocean or conducting maintenance on inland waterways. (read more)

Cygnus 1 Ex provides a first-class experience in user control and safety - unmatched within intrinsically safe Ultrasonic Thickness Measurement (UTM). (read more)

One of the major concerns in the shipping industry is the damage sea water can cause to cargo, which not only threatens vessel safety but also leads to expensive insurance claims. (read more)

Explosive dust environments pose serious risks across many industries, often leading to catastrophic damage and tragic loss of life. When airborne dust particles accumulate in confined spaces and encounter an ignition source. (read more)

Cygnus Instruments is a UK leader in Digital Ultrasonic Testing Equipment, which are renowned for ease-of-use, reliability and accuracy for corrosion inspection, flooded member detection, and leak detection of marine structures and vessels. (read more)

We often describe the Cygnus 1 Ex Ultrasonic Thickness Gauge as “Intrinsically Safe, certified to Zone 0, suitable for hazardous areas.” But what do these technical claims mean? (read more)

Numerous operations are running concurrently in industrial process plants across diverse infrastructure, including storage tanks, pipes and production equipment. The condition of this equipment must be maintained regularly to prevent risks of unplanned downtime and costly repairs. (read more)

The Cygnus 1 Ex Ultrasonic Thickness Gauge stands out because it’s Intrinsically Safe and certified for use in Zone 0 hazardous areas - the most dangerous classification. (read more)

Gas explosions are often catastrophic, causing irreversible damage and sadly, human fatalities. When an ignition source, such as electrical or thermal equipment, enters a space where there are flammable and potentially explosive substances, typically in a confined building or vessel, extreme heat increases pressure in the space and causes an explosion. (read more)

Professional divers are all too familiar with the challenges subsea environments present.

The latest model of the Cygnus Underwater, an incredible advance on its predecessor, has a host of smart new features, specially designed to operate seamlessly in severe, hostile conditions, simultaneously accomplishing greater accuracy and usability. (read more)

To celebrate our best-performing product, 3 years since launch, we’re offering a FREE PROBE when you order a Cygnus 1 Ex PRO Anniversary kit! Limited-Time Offer: Ends 31 Dec 2025. Cygnus 1 Ex PRO Ultrasonic Thickness Gauge (UTG) is designed for taking reliable ultrasonic thickness measurements (UTM) in all hazardous gas Zones (0, 1, 2), coal mines and combustible dust Zones... (read more)

Designed for divers needing to take reliable thickness measurements of underwater structures, the new Cygnus Underwater diver-held gauge provides quick and accurate metal thickness measurements through coatings or even heavy corrosion. Pre-Order Now! (read more)

Gas explosions are often catastrophic, causing irreversible damage and sadly, human fatalities. When an ignition source, such as electrical or thermal equipment, enters a space where there are flammable and potentially explosive substances, typically in a confined building or vessel, extreme heat increases pressure in the space and causes an explosion. (read more)

With its original roots in the NDT of ships’ hulls, Cygnus Instruments has now worked in the marine industry alongside ship surveyors and commercial divers for over four decades. (read more)

It’s finally here… our superb NEW Underwater Ultrasonic Thickness Gauge will be available for delivery this October! (read more)

Thriving from its roots in marine inspection services, Cygnus has been a trusted brand for extremely reliable and easy-to-use ultrasonic thickness measurement (UTM) equipment for infrastructure above and below water. (read more)

With several decades of experience designing ultrasonic testing (UT) equipment for the offshore and underwater environment, Cygnus Instruments fully understands the requirements of subsea inspection, repair and maintenance and has injected a wealth of subsea IRM knowledge and expertise into the ultrasonic Flooded Member Detection (FMD) solution. (read more)

On the horizon is our new Cygnus Underwater ultrasonic thickness gauge, a remarkable leap forward from its predecessor. Packed with intelligent new features, it's meticulously designed to operate flawlessly in various conditions, delivering unparalleled precision and usability that you can trust. (read more)

Cygnus Instruments was born in the marine industry, working alongside ship surveyors and commercial divers to this day. Four decades on, this knowledge of the industry and its challenges is second to none. Cygnus is world renowned as the inventor of easy-to-use, highly accurate ultrasonic testing (UT) equipment. (read more)

Cygnus is a world-renowned leader in user-friendly and durable Ultrasonic Testing (UT) equipment for reliable ultrasonic measurement above and below water. Since 1983, Cygnus has been working alongside ship surveyors and commercial divers. (read more)

Cygnus is a world-renowned leader in making easy-to-use and robust Ultrasonic Testing (UT) equipment for reliable ultrasonic measurement above and below water. Since 1983, Cygnus has been working alongside ship surveyors and commercial divers. (read more)

The cost of equipment failure within oil, gas and chemical industries (including fuel depots, processing plants and LPG/LNG vessels) on workers, shareholders, equipment, and the environment is often devastating. (read more)

Storage structures such as storage tanks and pipelines constantly exposed to fluids, chemicals, or heat are highly susceptible to corrosion. (read more)

Since 1983, Cygnus Instruments has been the leading manufacturer of Digital Ultrasonic Thickness Gauges (UTG) for reliable corrosion inspection and asset integrity management. (read more)

Dust explosions are often catastrophic, causing irreversible damage and sadly, human fatalities. When an ignition source, such as electrical or thermal equipment, enters a space where there is a high concentration of dust in the air, typically in a confined building or vessel, extreme heat increases pressure in the space and causes an explosion. (read more)

Working in potentially explosive atmospheres has a lot of strict and complex rules, regulations and procedures – especially when it comes to inspections using “Hot Tools” that can cause ignition. (read more)

Cygnus Instruments was born in the marine industry, working alongside ship surveyors and commercial divers to this day. Four decades on, this knowledge of the industry and its challenges is second to none. (read more)

Thriving from its roots in marine inspection services, Cygnus has been a trusted brand for extremely reliable and easy-to-use ultrasonic thickness measurement (UTM) equipment for infrastructure above and below water. (read more)

…Intrinsically Safe, certified to Zone 0, suitable for hazardous areas. There are a number of impressive statements we have used to introduce our Cygnus 1 Ex Ultrasonic Thickness Gauge, but what do they all really mean? In this campaign we aim to demystify these statements and explain the rules and regulations surrounding the use of equipment in hazardous areas. (read more)

In 2023, Cygnus offered an exclusive introduction to their superb new Underwater ultrasonic thickness gauge at the Seawork and IMX exhibitions. (read more)

Numerous operations are running concurrently in process plants. The condition of operation equipment must be maintained regularly to prevent risks of unplanned downtime and costly repairs. This is particularly true for structures susceptible to corrosion and erosion. However, the conundrum for plant managers and operators is that maintenance inspection could disrupt operation and product... (read more)

When operating in a potentially explosive atmosphere, there are several crucial aspects to look out for. This includes understanding the potential hazards and choosing the correct tools for the identified hazardous area. (read more)

Keeping the balance of production and maintenance is never an easy task, especially when it comes to hazardous environments. Here is our latest addition to Cygnus’ diverse UT range: a fantastic new accessory expanding the applications of the Cygnus 1 Ex Ultrasonic Thickness Gage. (read more)

There’s something very special about Cygnus’ Multiple-Echo technology; it allows ALL our gauges, for surface and subsea ultrasonic thickness gauging, to measure through coatings! (read more)

The Cygnus 1 Ex is Intrinsically Safe, certified to Zone 0, suitable for hazardous areas. There are a number of impressive statements we have used to introduce our Cygnus 1 Ex Ultrasonic Thickness Gage, but what do they all really mean? (read more)

Equipment that operates at high temperatures is often the most problematic to test. It is common for equipment to be situated with poor accessibility, in challenging environments, and amongst hazardous materials and substances. (read more)

Flyability, the market leader in confined space drones, announced today a new ultrasonic thickness measurement (UTM) payload for its flagship drone the Elios 3. This payload was developed in partnership with Cygnus Instruments, a global leader in ultrasonic testing (UT) technology to create a product that supports certified UT inspectors. (read more)

Professional divers are all too familiar with the challenges subsea environments present. The latest model of the Cygnus Underwater Gauge, an incredible advance on its predecessor, has a host of smart new features, specially designed to operate seamlessly in severe, hostile conditions, simultaneously accomplishing greater accuracy and usability. (read more)