DepthTrax 2B In-Dash Digital Depth Gauge - Transom/In-Hull TransducerThe DepthTrax 2B is an updated version of DepthTrax 1B. Following years of exhaustive R & D and field testing, we've updated the SONAR algorithms of the DepthTrax 2B to reach 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 we've ever produced. The DepthTrax 2B delivers a combination of performance and affordability unrival