depth finder

1. An instrument used to measure the depth of water, especially by radar, sonar, or ultrasound.

Example Sentences

Heading into the West Waterway of the Duwamish earlier that evening, long streaks of red began to light up the screen of the blue depth finder aboard one of Muckleshoot’s fisheries department boats.

Read more on Seattle Times

The National Marine Manufacturers Association has seen confoundingly mixed results — a fish finder is excluded while a depth finder isn’t, for example.

Read more on Salon

A fisherman told police his depth finder made him suspect a vehicle was submerged there.

Read more on Washington Times

On a recent research trip into Albemarle Sound off Roanoke to collect cores, he pointed to a depth finder that revealed perilously shallow water.

Read more on Science Magazine

While I was there, I went into a Cabela’s store in Fort Mill, S.C., to buy him a new depth finder for his fishing boat.

Read more on New York Times