The Humminbird SW Transom Mount Speed Sensor provides digital reading of your speed through the water, and allows you to activate the triplog features. The SW speed sensor comes with a 20-foot cable, mounts on your boat's transom mount, and has a speed range of 2- to 75-miles per hour. This kit is compatible with Humminbird's Matrix, and Fishfinder series, as well as their FF and 900-series sonar units.
