Ritchie - Explorer Compass - Bracket Mount - White - B-51W. Explorer Compass Features:. 2-3/4" 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 Warranty. Approx. Shipping Weight - 1lb (454g). 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.