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Cygnus 1 Metal Thickness Gauge

Weekly Hire Cost From: £100.00

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The Cygnus 1 is an intrinsically safe, multiple echo ultrasonic digital thickness gauge designed for measuring metal thickness in order to determine wastage or corrosion accurately and quickly whilst not removing the protective coatings on the metal.

The unique bonus feature of this instrument is that it can be used in a hazardous area as it is Atex approved enabling workers to use it on sites such as petro chemical, offshore or in the mining industry. Other benefits of the Cygnus 1 are that it measures remaining metal thickness on corroded and coated structures, all measurements are error checked using 3 return echoes to give repeatable and reliable results and it includes an echo strength indicator to aid measurement – all of which result in saving the user inspection time and costs.


  • Certified Intrinsically Safe to: ATEX, {Ex} I M 1 Ex ia I Ma (Ta = 0 to 45 C), {Ex} II 1 G Ex ia IIC T6 Ga (Ta = 0 to 45 C) & CSA Class 1 Division 1 Group A, B, C & D
  • Suitable for use in Zone 0 & Zone 1 hazardous areas
  • No plant shutdown or hot work permits necessary
  • Heavy duty sealed unit - IPX5 & IPX7 rated
  • Rugged, durable & shock-proof construction
  • Stable calibration - linear accuracy & no zero adjustment
  • Self-verification of the measurements to ensure accuracy
  • Bright LED display with polarised filter
  • Two rechargeable battery packs with charger
  • Displays sound velocity settings
  • Echo strength indicator to aid measurement
  • Various probe options
  • Right-angle probe is available for use in areas of restricted access
  • Probe frequency selectable
  • Metric / Imperial switchable
  • Low battery warning


  • Chemical plants
  • Petroleum, chemical storage tanks
  • Oil & gas production facilities such as pipelines and offshore platforms
  • Dry, dusty environments where ignition could occur
  • LPG vessels
  • Road transport tankers carrying potentially explosive contents
  • Grain processing plants
  • Fuel depots
  • Processing vessels
  • Structures & facilities in mines

Package Includes

  • Heavy duty remote
  • Probe
  • Nose cone tommy bar
  • Probe locking ring key
  • 2 rechargeable batteries
  • Battery charger
  • Spare membranes
  • Membrane couplant
  • O rings
  • Steel test block
  • Calibration jumper lead
  • Calibration trim tool
  • Hex key
  • Ultrasonic couplant
  • User guide
  • Carry case