Explorer Compass Features2 3/4″ Easy to Read Direct Reading DialEasily Installed Fits 3.75″ (9.53 cm) Mounting Hole. Internal Green Night IlluminationBuilt-in Compensators to Easily Adjust for DeviationScientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial MovementPowerful DirectiveForce Magnets for Fast Heading Lock-onMovable Sun ShieldHigh Temperature Composite Construction for Extended Operating Range100% RepairableExclusive 5-Year Ritchie WarrantyApprox. Shipping Weight: 1 lb (454g)Protective Cover: E-50-CReplacement PartsLight Assembly: 12 Volt: EX-0005-2; 6 Volt: EX-0099-2 Notes:All compasses come standard with 12 volt lighting. 24 volt lighting option is available.Some custom built OEM models may have different lighting. Contact Ritchie for replacement lighting. Product : RITCHIE F-50 EXPLORER COMPASS Manufacturer : RITCHIE COMPASS Manufacturer Part No : F-50 UPC : 010342160003