Furuno Mount Multi-Beam Transducer Transom. A built-in motion sensor stabilizes the display to give clear and stable images. Specifications for Furuno Transom Mount Multi-Beam Transducer: Manufacturer: Furuno Color: Black Features of Furuno Transom Mount Multi-Beam Transducer Transom mount with stainless steel kick-up bracket DFF3D operating frequency: 165 kHz 2 x 10M Cables Bare ended cable for DFF3D sonar 7 pin connector for the motion Built-in motion sensor Built in temp sensor Package Contents: Furuno Transom Mount Multi-Beam Transducer Furuno 165T-TM54: Mount Multi-Beam Transducer Transom