Humminbird 710200-1 XNT 9 SI 180 T Transom Mount Transducer New transom mount transducer design. Compact Dual/Side Imaging. 20/74/84 degree, 200/83/455 kHz with built-in temperature. More secure, especially at high force of waves. Improved running angle and an optional lock down screw to override the kick up. Humminbird 710200-1 XNT 9 SI 180 T Transom Mount Transducer Features: New design is more secure, less prone to kick up, with improved running angle Includes 20-foot cable, necessary mounting hardware, and built-in temperature sensor Combination DualBeam 20- and 60-degree beam sonar, and side-imaging sonar with two 84-degree beams For Use with 797c2 SI Combo CHO, 797c2 SI Combo NVB, 797c2 SI Combo Backed by manufacturer's one-year limited warranty.