HawkEye DepthTrax In-Dash Digital Depth Gauge - Transom Mount [DT2B-TM]DepthTrax In Dash Digital Depth Gauge Transom Mount The DepthTrax 2B includes advanced sonar, depth alarm, and keel offset capabilities. With updated SONAR algorithms, the DepthTrax 2B reachs new depths. Able to reach depths of 600 ft and tuned for high speed performance, the DepthTrax 2B reaches deeper and performs faster than any depth finder. The DepthTrax 2B delivers a combination of performance and affordability unrivaled in any other depth