Humminbird Transom Mount Transducer 455 kHz. Humminbird designed these Fishing Accessories with an innovative tri-beam element that uses electrically conductive elements to transfer energy from your motor to the water column whereas traditional sonars use a focused beam to find fish. This Humminbird XNT Combo Transducer will allow you to get a precise reading of your fishing location with its excellent CHIRP imaging sonar which will provide excellent sonar images for your fishing experience. Boost your electro-magnetic range and find some great catches with this Humminbird XNT I/O Transducer. Specifications for Humminbird XNT Transducer: Mount Type: Transom Features of Humminbird XNT Transom Mount Transducers: For use with: 1157c 1158c 300 TX 400 TX 717 718 727 728 737 747c 757c 767 768 777c2 778C 778c HD 787c2 787c2I 788C 788ci 788ci HD 917C 931C 931C DF 937C 937C DF 957 958c MATRIX 35 MATRIX 37 PiranhaMax 180 (tri beam only) WIDE OPTIC WIDE PANORAMA WIDE PARAMOUNT WIDE PORTRAIT WIDE VIEW WIDE VISION 345c DI 346c DI 385ci DI 386ci DI 561 DI 570 DI 571 HD DI 581i HD DI 587ci HD DI 596c HD DI 597ci HD DI Combo 788ci HD DI Combo 858c DI 858c HD DI 958c DI 958c HD DI 1158c DI Package Contents: Humminbird XNT Transom Mount Transducer Humminbird 7102361: Transom Mount Transducer 455 kHz