Marine VDR Systems: Size - Compact, typically 300x300x150 mm; Grade - IEC 61996 compliant; Viscosity - N/A; Buoyancy - N/A; Material - Stainless steel or aluminum housing.
Navigation Systems: Size - Varies (displays 10-24 inches, antennas 200-500 mm); Grade - IMO SOLAS compliant; Viscosity - N/A; Buoyancy - N/A; Material - Marine-grade aluminum, waterproof plastics, corrosion-resistant metals.