The XHS 9 HDSI 180 T includes a built-in temperature sensor, a 20-foot cable, and all the necessary high-speed hardware to get up and running right away. Although this unit has the same hole pattern as some older-version transducers, it utilizes a new design that is more secure and less prone to kick up at the high force of waves, as well as having an improved running angle, and an optional lock-down screw to override the kick up. The Humminbird XHS 9 HDSI 180 T transducer is specifically designed for use with Humminbird’s 797c SI Combo fish finder and other side-imaging sonar systems. This transducer is backed by Humminbird’s one-year limited warranty.