The SeaShield monitors long stretches of coastline, harbors and ports, naval bases and other strategic areas against the danger of hostile submarines and smaller submersibles. The SeaShield is comprised of an active transmit array, large passive receive arrays and an electronic unit installed on the sea bed. The system's two long receive array strings are composed of multiple hydrophones that pick up the signals returning from underwater objects. The SeaShield supports automatic classication that distinguishes between submarines and other underwater objects. An automatic alert siren is sounded the moment that a submarine or mini-sub is detected and classied. The underwater threat is continuously tracked by the system and its exact position data is displayed on the screen.

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