A Sonardyne Sentinel diver detection sonar is to be supplied as part of an integrated security package for one of the world’s largest megayachts currently under construction in a European shipyard. Sonardyne is working with MarineGuard Systems Ltd, the yacht’s security systems integrator, to provide a Sentinel Intruder Detection Sonar and an electro-hydraulic through-hull deployment system. This will consist of gate valves, extension tubes, coffer dam and associated ancillaries and will enable the immediate automatic deployment and recovery of the Sentinel sonar array.