Answer: SONAR

AnswerCrossword Clue
SONARDestroyer detector
SONARSub finder
SONARTorpedo spotter
SONARAntisub device
SONARShipwreck seeker's tool
SONARSunken-ship finder
SONARAcronym used down under?
SONARFathometer, basically
SONARSub apparatus
SONARSunken-object detector
SONARNavigational aid
SONARBat signal?
SONARTracking device
SONARUnderwater device
SONARDeep-sea detector
SONARSub-conscious sensor?
SONARSub sensor
SONARSub locator
SONARTool for bats
SONARWhale finder
sonarmethod or apparatus for detecting objects in water by means of sound waves
SONARFish-finding apparatus
SONARLocating detector
SONARSub detector
SONARUnderwater detection system
SONARWhat dolphins and bats have in common
SONARBass boat device
SONARDetection device
SONARDolphin sense
SONAREcho-locator
SONAREcholocation device
SONARNavigational device
SONARWolfpack locater
SONARSubmarine acronym
SONARFish finder
SONARDetecting device
SONARMarine detector
SONARDetection method
SONARSub spotter
SONAREcholocation method