Humminbird XTM-9-DI-25-T Trolling Motor Transducer Features: Trolling Motor TransducerDown Imaging transducer 200/455kHzLow Profile Design Minimizes SnagsEasy Installation - All Hardware Included15 Foot CableHumminbird XTM-9-DI-25-T Trolling Motor Transducer Compatibility1100 Series: 1198c SI Combo, 1158c DI Combo900 Series: 998c SI Combo, 958c DI Combo800 Series: 898c SI Combo, 858c DI Combo700 Series: 798ci HD SI Combo, 788ci HD DI Combo500 Series: 597ci HD DI Combo, 596c HD DI, 570 DI, 570 DI Portable300 Series: 385ci DI Combo, 345c DI Combo