Marine Wind Direction Indicators: Size: Typically 30-60 cm in length; Grade: Marine-grade stainless steel or aluminum; Viscosity: N/A; Buoyancy: N/A; Material: Stainless steel, aluminum, or UV-resistant polymers.
Navigation Systems: Size: Varies (displays range from 7-24 inches); Grade: IPX7 or higher waterproof rating; Viscosity: N/A; Buoyancy: N/A; Material: Corrosion-resistant metals, reinforced plastics, and tempered glass.