CYGNUS 2 Mk4 Multiple Echo Ultrasonic Digital Thickness Gauge

CYGNUS 2 Mk4 Multiple Echo Ultrasonic Digital Thickness Gauge

The Cygnus 2 has now been discontinued by Cygnus. This listing remains on this site for reference purposes only. Click here to see the new Cygnus Mk5 range.

The Cygnus 2 Mk4 is the smallest, lightest and most durable through coating thickness gauge available. It is simple to use - just turn on and go! Perfect for use on flat surfaces or pipes. The multiple echo single crystal probe technology means you can measure through thick coatings and only the remaining metal thickness is displayed.


  • New OLED Multi Functional display with improved readability in all lighting conditions
  • Battery life increased by 50%
  • Rugged probe cable design for superior flexability
  • Hands free operation: Belt/Harness clip and Neck Strap included
  • Light, rugged, small, shock-proof within IP65 & IP67 sealed aluminium enclosure
  • Protective silicone sleeve offers maximum protection and versatility
  • Simple keypad operation
  • All measurements are error checked using 3 return echoes to give repeatable, reliable results
  • Gauge senses probe type and automatically adjusts settings for optimum performance
  • Accepted by all major classification societies
  • Single crystal probe to ensure accurate measurements on curved and heavily corroded back walls
  • Echo strength indicator to aid measurement
  • Calibration to a known thickness or a known velocity of sound
  • Display brightness adjustable to suit ambient light conditions
  • Low battery warning
  • Metric / Imperial switchable
  • Deep-Coat mode for coatings up to 20mm thick
  • Secure, twist-to-lock probe connection (BNC)



Maintenance and safety checks of metal thickness for:

  • Shipping
  • Storage tanks
  • Pipelines
  • Bridges
  • Street lighting columns
  • LPG vessels
  • Road transport tankers
  • Offshore platforms
  • Piers, jetties and pilings
  • plus many more

Kit contents

  • Instrument
  • 2.25 MHz x 13 mm diameter probe
  • spare membranes
  • 15 mm steel test block
  • membrane couplant
  • ultrasonic couplant
  • accessory pouch
  • protective silicone
  • sleeve with belt/harness clip
  • neck strap
  • operation manual
  • carry case

See attachment for specifications.

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RFS Item Code
CYGNUS 2 Mk4 Multiple Echo Ultrasonic Digital Thickness Gauge
RFS Item Code: CYGNUS:TG-Cyg 2 Mk-IV
RFS Item Code