Explorer Compass Features2 3/4"" Easy to Read Direct Reading Dial Adjustable and Removable with Bracket and Thumbscrews Internal Green Night Illumination Built-in Compensators to Easily Adjust for Deviation Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement Powerful DirectiveForce Magnets for Fast Heading Lock-on Movable Sun Shield High Temperature Composite Construction for Extended Operating Range 100 Repairable Exclusive 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 Thumbscrews: SH-0077XSP Bracket: EX-0004XSPNotes: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 B-51 EXPLORER COMPASS Manufacturer : RITCHIE COMPASS Manufacturer Part No : B-51 UPC : 010342160102