Combining critical race information into one simple display unit, the Sail Master redefines "state of the art" in digital race electronics. Large twin displays give clear all round visibility, and Tacktick's unique solar system ensures a lightweight, simple installation with complete water integrity. Heading is displayed on the upper line, with speed shown to0.01 knot resolution on the lower line. Depth is hown graphically to the side, with numeric depth "pop-up" and audible alarm when in shallow water.