Mercury - Cruiselog Gauge Speed & Trip Monitoring Black Face Chrome Bezel 79-8M6020008. OverviewThis Cruiselog gauge gives you an easy, steady way to keep track of both speed and distance while you're on the water. The needle moves in a smooth, predictable sweep, so it doesn't get jumpy when the boat rocks. It turns into one of those simple checks you make without thinking-look down, get your info, and stay focused on the run. Clean, practical, and built for everyday boating.. Key Features • Cle