Designed for inspecting almost any watertight, gas-tight or weather-tight seal for areas of weak seal compression or leak sites, by using ultrasonic technology. Primarily for testing the seal integrity of watertight compartment Doors, Hatch covers, and Multiple Cable Transit Areas, and also for hatches, storage tanks, bulkheads and other watertight compartments. Pin-point accuracy to 0.06mm with a tolerance of +/-0.02mm, quicker, cleaner and more efficient watertight integrity testing, ideal to replace high pressure hoses testing or chalk testing. It comes complete in a protective carrying case including Receiver, Standard Generator, Extension Rod “Wand”, Headphones, and Operating Instructions. RINA Society Approved. NATO-approved