Navman Wind 3100
We put one of these on our boat last year. The unit worked well but water leaked into the display during a hard rain. The Navman folks said that shouldn't have happened, asked me to return the display and replaced it with a new one. I should add that the unit was usable even after the leak and we kept using it until the end of the season, when we exchanged it. We're happy with it and the price is definitely right.