Humminbird XHS 9 HDSI 180 T Transom Mount Transducer Transom mount transducer 83/200/455/800 kHz, 60/20/180 beam angle Temperature sensor With 20' cable For Side Imaging units only 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 Compatible with 997c SI Combo fish finder and other side-imaging Humminbird sonar systems Backed by manufacturer's one-year limited warranty