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Cygnus 4

A rugged, easy-to-use thickness gauge using Multiple-Echo technology to measure through coatings—ideal for general-purpose inspections across marine, oil and gas, civil, and industrial applications.

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The Cygnus 4 is a robust, handheld ultrasonic thickness gauge designed for hassle-free metal inspection through coatings—without grinding or stripping surfaces. Using the proven Multiple-Echo technique, it delivers accurate readings even through protective layers up to 20 mm thick, making it a reliable tool for plant maintenance, marine surveys, civil infrastructure checks, and more.

With an intuitive one-point calibration, vibration and visual alerts, and simple menu navigation, the Cygnus 4 offers a seamless user experience for technicians in the field. Its MIL STD 810G certification and IP67-rated enclosure ensure dependable performance in tough industrial and offshore conditions.

Upgrades to 4+ or 6+ models are available to add advanced features as operational needs grow.

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Specification

MEASURING MODES

Multiple-Echo: Accurately measures through coatings up to 20 mm
No zeroing required; one-point calibration

MATERIALS

Velocity range: 1,000 – 9,000 m/s (0.0390 – 0.3543 in/μs)

ACCURACY

±0.05 mm (±0.002″) in Multiple-Echo mode

RESOLUTION

0.1 mm or 0.05 mm (0.005 or 0.002 inch)

PROBES

Single crystal probes

MEASUREMENT RANGE (STEEL)

1 – 250 mm (0.040 – 10 in), depending on probe and setup

CONNECTOR

2 x Lemo 00

POWER

3 x AA (R6) batteries
Battery Life: Approx. 10 hours

ELECTRONICS

Dual channel pulser

DISPLAY

2.4” QVGA LCD, 47 x 37 mm
Bright, front-mounted colour screen

SIZE & WEIGHT

Size: 84 x 130 x 35 mm
Weight: 300 g (including batteries)

OPERATING TEMP.

-10°C to +50°C (14°F to 122°F)

ENVIRONMENTAL RATING

IP67 sealed
MIL STD 810G certified (temperature, humidity, immersion, vibration, shock, drop)

ALERTS & FEATURES

Visual and vibration alerts
Min/Max thickness limit settings
Deep Coat function (up to 20 mm)

COMPLIANCE & STANDARDS

Designed for EN 15317
CE, UKCA, RoHS compliant

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Cygnus 4

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