Speed Master provides you with speed, depth and performance data related to speed. With its 0.01 knot resolution, fast update and large twin displays, Speed Master gives you an instant picture of both speed and acceleration. Speed trim is displayed to the side on the bar graph, indicating changes in speed against target in the range+/-25%. Depth is displayed on the lower line, with an audible alarm in shallow water. To see the whole picture at a glance, you can use Speed Master in conjunction with Race Master. You then have a continuous display of heading, wind shifts, speed, speed trim and depth.