depth gauge
depth gage

The high pressure, in turn, caused the depth gauge to register low.

Gary looked at the depth gauge strapped to his wrist.

He pointed at a depth gauge mounted above the windows.

The first depth gauge was invented in the late 1800s.

By moving and setting the head, it can be used as a depth gauge or to transfer dimensions.

His depth gauge put them at thirty feet, then forty.

He could barely see his wrist compass and depth gauge.

The ship seemed to close in on them, and Austin kept checking his depth gauge.

If you'll watch the depth gauge you can note our progress.

The depth gauge on the fishing boat had put the bottom at just over seventy feet.