The Gauge That Outlasted Expectations

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, engineered with advanced technology, modern usability, and the same uncompromising durability that professionals have trusted for years. As one diver’s story proves, true reliability doesn’t fade with time…

Product Case Study: Cygnus 1

In the early 1990s, Mr Guthrie, a diver, purchased a Cygnus 1 Underwater ultrasonic thickness gauge. It came with a fixed head, and a few years later, he arranged to have a remote transducer fitted along with a spare battery. That modification stayed in place for the rest of the gauge’s working life.

For over two decades, the Cygnus 1 was used for underwater structural inspections, mostly of bridges. It endured corrosion, coatings, and the rough handling that comes with diving work. Then, in 2014, Mr Guthrie retired from diving. The gauge was stored away.

Fast forward to 2024.

Now working for a large engineering firm that performs above-water bridge inspections, Mr Guthrie was asked to assist a team using a new $1,200 ultrasonic thickness gauge. It was supposed to measure through coatings, but no one had field experience with ultrasonic... read more about the gauge that outlasted expectations.