Parallel Ruler 381 mm (15\") Chart Ruler | 4Boats 4Boats Real Vision model includes built-in

Real Vision model includes built-in RealVision 3D Sonar technology

Complies with IMO regulations for life-saving appliances

compatible with 12 V and 24 V systems

so will provide near full-length insulation for most people

Dimensions 460×525 mm (18

Parallel Ruler 381 mm (15\") Chart Ruler | 4Boats 4Boats Real Vision model includes built-inParallel Ruler L 381 mm (15\") parallel ruler for accurate manual chart plotting and navigation training. Length 381 mm (15\") for plotting on standard charts Parallel motion transfers bearings and courses accurately Straight edges for precise, clean line drawing Compact profile fits chart bags and instrument lockers Durable construction lightweight and stable for deck use Ideal for manual navigation and training exercises What's included: one