Navigator CompassNavigator Compass Features:4-1/2" PowerDamp Flat Card Dial with Large NumeralsPowder Coated Black HousingIdeal for both Power and Sail BoatsFits all Popular Sailboat Steering PedestalsExclusive Built-in Green NiteVu Night IlluminationBuilt-in Compensators to Easily Adjust for DeviationScientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial MovementInternal Gimbal Systems for Maximum Stability During Adverse Pitch and Roll ConditionsPowerful DirectiveForce Magnets for Fast Heading Lock-onMovable Sun Shield45 Degree Lubber LinesHigh Temperature Construction for Extended Operating RangeCustom Fitted Protective Covers Available (weather shield model no. WS-P)Easily Installed, Fits 5.25" (13.35cm) Mounting Hole 100% RepairableExclusive 5-Year Ritchie WarrantyApprox. Shipping Weight: 3lbs 10oz (1.65 kg)Notes:For Navigators built before 1986 please see the service manual page 6-12 or contact Ritchie for replacement lighting.12 volt lighting standard - 24 & 32 volt lighting options are available.