Faria Depth Sounder ( Transom Mount Transducer) Euro Black (Black Bezel and Black Face) with Transom Mounted Transducer Ranges from 1-ft. to 199-ft. Features an over sized backlit display making viewing easy. Completely waterproof fits into a 2-1/8-in. hole. Programmable keel offset with shallow and deep water audible and visual alarms. Includes Transom mounted Transducer 20 ft. of cable and mounting hardware. Installation cut out is 2 1/16".