Tweet
S&M Marine's goal is to get you back out on the water and keep you there without worrying if your boat will make it or not. That is the reason I Install only SEI Units for my customers and my personal boats. SEI units are very dependable and well priced units. The whole process of ordering from SEI is very easy the staff is very knowledgeable and helpful. I also can rely on SEI getting the unit to me quickly most ship. out the same day I order. I will be ordering again soon!!!