Answer: SONARS

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Sub detectors we know 1 Answer
Sub systems we know 1 Answer
Submarine detection systems we know 1 Answer
Devices on destroyers we know 1 Answer
Underwater sound detectors we know 1 Answer
Underwater detection systems we know 1 Answer
Undersea trackers we know 1 Answer
They go down low we know 1 Answer
Searching systems we know 1 Answer
Naval instruments we know 1 Answer
Finding things? we know 1 Answer
Echolocation devices we know 1 Answer
Echo sounders we know 1 Answer
Anti-sub devices we know 1 Answer

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