Humminbird Transom Mount Transducer XNT 9 20 T - This transom mount transducer can be used with many of Humminbird's popular sonar units. This transducer is more secure and it has an improved running angle and an optional lock down screw to override the kick up feature. Features: single/dual beam, 20/60 degree cone angle, 200/83 kHz frequency, and built in temperature sensor. Comes with 20ft of cable. Transom mount Improved running angle