Furuno TM275LHW-12P Transom Transducer Low/High Wide 12PinThe TM275CLHW 12P transom mount CHIRP transducer delivers broad, reliable sonar coverage, fast depth readings, and quick water temperature updates in a rugged, 12 pin packagedesigned for anglers who want accurate echoes from bottom structure to the upper water column. 12 pin transom mount design: Easy integration with compatible sonar units in a rugged, compact package. Low CHIRP Range: 42 kHz to 65 kHz with beamwidth from 25 to 16 for broad bottom