Marine AIS Transponder Cables: Size - 6mm to 20mm diameter, Grade - UV-resistant, waterproof, Viscosity - N/A, Buoyancy - Neutral or slightly buoyant, Material - Polyurethane or PVC sheathing with copper conductors.
Navigation Systems: Size - Varies by model (compact to large console units), Grade - Marine-grade, corrosion-resistant, Viscosity - N/A, Buoyancy - N/A, Material - Aluminum, stainless steel, or reinforced plastic housing.