Humminbird Dual Beam Transducer 200kHz Trolling Xtm 9 20 T. This sonar transducer by Humminbird is an excellent example of the bread and butter of Humminbird fish finders. The Humminbird XTM Trolling Motor Mount Fishing Transducer contains an thru hull exaaxle port that runs to the trolling motor a thru hull bixby connector for the trolling motor and a connector for the coax that goes to the deck or trolling motor head. This allows you to check the trolling motor and the motor before and after fishing. The Humminbird XTM Trolling Motor Mount Extended Frequency Transducer is great for anglers that want a high sensitivity high performance transducer for in-water use. Specifications for Humminbird XTM Transducer: Mount Type: Trolling Features of Humminbird XTM 9 Trolling Motor Mount Transducers: For use with: 1100 Series: 1158c DI Combo 900 Series: 958c DI Combo 958c HD DI Combo 800 Series: 858c DI Combo 858c HD DI Combo MATRIX Series PIRANHA Series PiranhaMax Series Package Contents: Humminbird XTM Trolling Motor Mount Transducer Humminbird 7101601: Dual Beam Transducer 200kHz Trolling Xtm 9 20