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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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Original price $4,199.99 - Original price $4,199.99
Original price
$4,199.99
$4,199.99 - $4,199.99
Current price $4,199.99

Cygnus 2+ Mk5 Multi-Mode Ultrasonic Thickness Gauge

Russell Fraser Sales
in stock

The 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...

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Original price $4,199.99 - Original price $4,199.99
Original price
$4,199.99
$4,199.99 - $4,199.99
Current price $4,199.99
Original price $5,399.00 - Original price $5,399.00
Original price
$5,399.00
$5,399.00 - $5,399.00
Current price $5,399.00

Cygnus 4 Mk5 Multi-Mode Ultrasonic Thickness Gauge

Russell Fraser Sales
in stock

The Cygnus 4 is a small, tough, and accurate ultrasonic thickness gauge. It's built for demanding conditions, with a simple keypad, intuitive menus...

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Original price $5,399.00 - Original price $5,399.00
Original price
$5,399.00
$5,399.00 - $5,399.00
Current price $5,399.00
Original price $6,499.99 - Original price $6,499.99
Original price
$6,499.99
$6,499.99 - $6,499.99
Current price $6,499.99

Cygnus 4+ Mk5 General Purpose Ultrasonic Thickness Gauge

Russell Fraser Sales
in stock

The 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...

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Original price $6,499.99 - Original price $6,499.99
Original price
$6,499.99
$6,499.99 - $6,499.99
Current price $6,499.99
Original price $7,499.00 - Original price $7,499.00
Original price
$7,499.00
$7,499.00 - $7,499.00
Current price $7,499.00

Cygnus 6+ PRO Multi-Mode Ultrasonic Thickness Gauge

Russell Fraser Sales
in stock

The 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 ...

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Original price $7,499.00 - Original price $7,499.00
Original price
$7,499.00
$7,499.00 - $7,499.00
Current price $7,499.00
Original price $949.99 - Original price $949.99
Original price
$949.99
$949.99 - $949.99
Current price $949.99

Cygnus Single Crystal Ultrasonic Probes – Multi-Mode Gauge Probes

Russell Fraser Sales
in stock

Single crystal probes work with Cygnus gauges in Multiple-Echo mode, letting you take measurements through coatings without stripping them first. W...

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Original price $949.99 - Original price $949.99
Original price
$949.99
$949.99 - $949.99
Current price $949.99
Original price $1,199.99 - Original price $1,199.99
Original price
$1,199.99
$1,199.99 - $1,199.99
Current price $1,199.99

Cygnus Twin Crystal Ultrasonic Probes – Corrosion Thickness Probes

Russell Fraser Sales
in stock

Twin 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...

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Original price $1,199.99 - Original price $1,199.99
Original price
$1,199.99
$1,199.99 - $1,199.99
Current price $1,199.99
Original price $2,449.99 - Original price $2,449.99
Original price
$2,449.99
$2,449.99 - $2,449.99
Current price $2,449.99

Cygnus High Temperature Probe – Ultrasonic Thickness Gauge Probe

Russell Fraser Sales
in stock

This twin-element ultrasonic probe is built for high-temperature, in-service thickness measurements and corrosion surveys across oil and gas, refin...

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Original price $2,449.99 - Original price $2,449.99
Original price
$2,449.99
$2,449.99 - $2,449.99
Current price $2,449.99
Original price $4,799.99 - Original price $6,599.99
Original price
$4,799.99 - $6,599.99
$4,799.99 - $6,599.99
Current price $4,799.99

Ultrasonic Corrosion Thickness Gauge CMX Series – Through-Coating

Qualitest
in stock

The CMX series carries over everything the ZX gauges offer, then adds a long list of advanced capabilities on top. It measures material and coating...

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Original price $4,799.99 - Original price $6,599.99
Original price
$4,799.99 - $6,599.99
$4,799.99 - $6,599.99
Current price $4,799.99
Original price $2,599.99 - Original price $5,499.99
Original price
$2,599.99 - $5,499.99
$2,599.99 - $5,499.99
Current price $2,599.99

Ultrasonic Material Thickness Gauge CX Series - Metal & Plastics

Qualitest
in stock

The CX Series ultrasonic thickness gauge is built for accurate material thickness and velocity readings across a range of materials and application...

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Original price $2,599.99 - Original price $5,499.99
Original price
$2,599.99 - $5,499.99
$2,599.99 - $5,499.99
Current price $2,599.99
Original price $2,549.99 - Original price $3,999.99
Original price
$2,549.99 - $3,999.99
$2,549.99 - $3,999.99
Current price $2,549.99

Ultrasonic Corrosion Thickness Gauge ZX Series - Pipe & Tank Walls

Qualitest
in stock

The 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...

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Original price $2,549.99 - Original price $3,999.99
Original price
$2,549.99 - $3,999.99
$2,549.99 - $3,999.99
Current price $2,549.99
Original price $5,999.00 - Original price $5,999.00
Original price
$5,999.00
$5,999.00 - $5,999.00
Current price $5,999.00

Ultrasonic Thickness Gauge QTG IV - Steel, Pipe & Metal Walls

Qualitest
in stock

The 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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Original price $5,999.00 - Original price $5,999.00
Original price
$5,999.00
$5,999.00 - $5,999.00
Current price $5,999.00

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