Cygnus Instruments manufacture Multiple Echo Ultrasonic Thickness Gauges that measure the metal thickness whilst completely ignoring coatings. Reliable, consistent and accurate measurements are obtained and automatically verified as all three 'back wall echoes' must be equal. Datalogging, Intrinsically safe, Underwater, Standard and heavy duty models available. Also Ultrasonic Leak Detectors, Condition Monitoring Tools and Coating Thickness Gauges. Cygnus Instruments Ltd, founded in 1993, were pioneers in the development of the ultrasonic multiple echo technique used for material thickness measurement through coatings. This has long been the standard required to ensure that accurate measurements are taken without the need to first zero the gauge or remove coatings. Our philosophy is to work closely with each of our customers to provide a range of products specifically for each application. Please quote Kompass when you call.