Marine instruments need to be in top shape for safe boating. Using your speed instruments, depth finders, electronic and magentic compasses, as well as wind speed instruments and marine weather instruments keep you and those on board safer. Marine instruments must be kept in good working order and functioning at all times. Your marine instrument displays such as the fuel meter, transducers, boat tempoerature instruments and rudder are all important and an essential part of boating. Be sure to check out all of our marine instruments for your boating safety. Discounted prices and quick shipping on in stock products is available. Quality Marine Supply is Your Online Boating Store for marine instruments.