Thickness Gauges
An ultrasonic thickness gauge measures remaining wall thickness from one side of the material, which is what makes it the standard instrument for corrosion surveys on pipework, tanks, vessels and hulls. You get a reading without shutting anything down or cutting anything open.
The main decision is single-element or multi-mode. A general purpose gauge reads bare or lightly corroded metal accurately and costs less; The Cygnus 4+ Mk5 general purpose gauge covers most routine steel measurement work. A multi-mode instrument uses echo-to-echo measurement to ignore paint and coatings entirely, which matters when stripping back to bare metal is impractical. The Cygnus 4 Mk5 multi-mode gauge and the compact Cygnus 2+ Mk5 both work this way, and the Cygnus 6+ PRO adds an A-scan display for operators who want to see the waveform rather than trust a number.
Our range covers various usage applications at various price points. The Dakota CMX Series and ZX Series are corrosion-specific, the CX Series suits general material measurement including plastics and composites, and the QTG IV is a straightforward entry point for occasional use.
Probe choice matters as much as the gauge. Twin crystal probes cope with rough, pitted or corroded surfaces where a single crystal probe loses signal, and a high temperature probe is necessary for anything measured hot.
Inspectors running thickness surveys often also need ultrasonic flaw detection equipment for the weld inspection side of the same job.
All gauges supplied by quote with free nationwide shipping.
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Cygnus 2+ Mk5 Multi-Mode Ultrasonic Thickness Gauge
Russell Fraser SalesThe Cygnus 2+ Mk5 has an end-mounted OLED display, which makes it well suited to hands-free work - rope access jobs in particular. Its twin-shot in...
View full detailsCygnus 4 Mk5 Multi-Mode Ultrasonic Thickness Gauge
Russell Fraser SalesThe Cygnus 4 is a small, tough, and accurate ultrasonic thickness gauge. It's built for demanding conditions, with a simple keypad, intuitive menus...
View full detailsCygnus 4+ Mk5 General Purpose Ultrasonic Thickness Gauge
Russell Fraser SalesThe Cygnus 4+ Mk5 is a small, tough, and accurate ultrasonic thickness gauge, built for the harshest environments and toughest NDT jobs. It has a s...
View full detailsCygnus 6+ PRO Multi-Mode Ultrasonic Thickness Gauge
Russell Fraser SalesThe Cygnus 6+ PRO sits at the top of Cygnus Instruments' thickness gauge range. It pairs a large front colour LCD with an end-mounted OLED display ...
View full detailsCygnus Single Crystal Ultrasonic Probes – Multi-Mode Gauge Probes
Russell Fraser SalesSingle crystal probes work with Cygnus gauges in Multiple-Echo mode, letting you take measurements through coatings without stripping them first. W...
View full detailsCygnus Twin Crystal Ultrasonic Probes – Corrosion Thickness Probes
Russell Fraser SalesTwin crystal probes pair with Cygnus gauges in Echo-Echo or Single-Echo mode and are built for measuring on heavily corroded metal. All four models...
View full detailsCygnus High Temperature Probe – Ultrasonic Thickness Gauge Probe
Russell Fraser SalesThis twin-element ultrasonic probe is built for high-temperature, in-service thickness measurements and corrosion surveys across oil and gas, refin...
View full detailsUltrasonic Corrosion Thickness Gauge CMX Series – Through-Coating
QualitestThe CMX series carries over everything the ZX gauges offer, then adds a long list of advanced capabilities on top. It measures material and coating...
View full detailsUltrasonic Material Thickness Gauge CX Series - Metal & Plastics
QualitestThe CX Series ultrasonic thickness gauge is built for accurate material thickness and velocity readings across a range of materials and application...
View full detailsUltrasonic Corrosion Thickness Gauge ZX Series - Pipe & Tank Walls
QualitestThe ZX Corrosion Thickness Gauge comes in four models, each stepping up in functionality - from the entry-level ZX1 through to the top-of-the-range...
View full detailsUltrasonic Thickness Gauge QTG IV - Steel, Pipe & Metal Walls
QualitestThe QTG IV is an advanced ultrasonic thickness gauge offering both A-scan and B-scan measurement, including Echo-Echo (thru-paint) capability. It m...
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