Cygnus DIVE Underwater Gauge

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300 m depth rated
Wrist-mountable, giving the diver a free hand
A-Scan (selectable)
Data logging - stores 5000 measurements and A-Scans
"Auto-Log” - no log button to press
AMOLED display, easy viewing from all angles for diver and camera
Multiple-Echo, error- checked measurements through coatings up to 20 mm thick
Single-Echo - for use on uncoated surfaces with heavy back-wall corrosion/ pitting
MSI™ Measurement Stability Indicator - exclusive to Cygnus, confirms a stable reading in Single-Echo and Echo-Echo modes
Echo-Echo - for use on painted surfaces with heavy back-wall corrosion/ pitting (through up to 0.5 mm paint)
HelmetView™ - optional remote display.

With its bright, very large, AMOLED display the Cygnus DIVE is simple to operate, providing accurate and reliable thickness measurements, underwater.  Depth rated to 300 metres.

Available with data logging, topside, HelmetView™ and twin crystal probe options.

MSI™ Measurement Stability Indicator - this is a feature exclusive to the Cygnus. When using the DIVE Gauge in Single-Echo and Echo-Echo modes, MSI™ confirms when a reading is stable by turning the thickness measurement numbers from red to yellow.



2.8” quarter VGA colour AMOLED (320 x 240 pixels)
Large clear thickness measurement (15 mm high numbers), viewable from all angles
A-Scan display with automatic X axis
Battery level, signal strength, probe type, velocity
Measurement mode and units indication
Single 3.6V Li-ion 8.2 W battery
11 hours continuous measurement
Low battery warning ‘alert’ message
Measurement Modes
Multiple-Echo (three back-wall echoes) using Single Crystal (zero-degree) probes automatically ignores surface coatings and measures only metal thickness 
Echo-Echo (two back-wall echos) using Twin Crystal probes
Single-Echo (first back-wall echo) using Twin Crystal probes
Deep Coat In Multiple-Echo mode, allows measurement to be made through thicker coatings of suitable materials of up to 20 mm thick
Accuracy ±0.1 mm (±0.004”) or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure
Single Crystal probes:
2.25 MHz 13 mm (standard) S2C
2.25 MHz 19 mm S2D
3.5 MHz 13 mm S3C
5.0 MHz 6 mm S5C
Twin Crystal probes:
2.0 MHz 13 mm x2 (for some plastics e.g. outfall pipes) T2C
5.0 MHz 8 mm x2 (standard) T5B
Probe Cables
Double outer jacket in tough PU.  Coloured yellow for easy locations underwater.  Coiled for ease of use.  Fischer S105 series connectors.
Measurement Ranges
Multiple-Echo (through coatings) with Single Crystal probes:
2.25 MHz = 3.0 to 250 mm
3.5 MHz = 2.0 to 150 mm
5.0 MHz = 1.0 to 50 mm
Echo-Echo with Twin Crystal probes:
5.0 MHz = 4.0 to 50 mm in steel
2.0 MHz = 6.0 to 50mm in steel
Single-Echo with Twin Crystal probes:
5.0 MHz = 2.0 to 100 mm in steel
2.0 MHz = 3.0 to 150 mm in steel
Measurement Resolution
0.1 mm - Low resolution mode or measurement >99.95 mm
0.05 mm - High resolution mode and measurement <100.0 mm
0.01 mm - Single-Echo mode only and measurement <100.0 mm
0.05 mm - High resolution mode and measurement <100.0 mm
0.01 mm - Single-Echo mode only and measurement <100.0 mm
Measurement Units mm or inches
Probe Zero Fully automatic probe zeroing for all probes types
V-Path Correction Automatic V-Path correction for all Twin Crystal probes
Velocity Range 2000 to 9000 m/s in 1 m/s setps
Pulser Twin channel 70 V spike pulser
Receiver / Amplifier
10 MHz bandwidth, 120 dB range, automatic TCG
60 MHz measurement time-base
Data Logging
One-handed automatic logging of stable measurements.  Capacity for up to 5000 points including 640 point A-Scan data.
Data Output RS-485 single pair, half duplex for surface connection
Computer Software CygLink v4 allows remote logging and viewing of A-Scan graphs.  Survey and report generation to PDF file. Graphic analysis of data and statistical calculations.  Designed for Windows 7 and Windows 8.


Kit Content

Cygnus DIVE gauge, 2 rechargeable batteries, fast charger, Multiple-Echo (through coating) probe (2.25 MHz 13 mm), user manual, spare membranes, membrane key, test block and surface and membrane couplant.


  • Maintenance and safety checks on bridges
  • Metal thickness / wear checks on jetties, dock gates, piers and piling systems.
  • Metal thickness and corrosion checks on offshore structures and ships
  • Safety corrosion monitoring of pipelines and storage vessels
  • Ships classification surveys.


*Prices as shown on this store are indicational and subject to 21% tax,
currency changes and shipping costs. For an accurate and special price please call or e-mail our support.

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