Explorer Compass. Explorer Compass Features 2-3/4 Easy to Read Direct Reading Dial. Viewing is adjustable to 30 Degrees. 12V Night Illumination. Built-in Compensators to Easily Adjust for Deviation. Easily Installed, Fits 3 7.62cm Mounting Hole. Scientifically Matched Sapphire Jewel Hardened Steel Pivot Dial Movement. Powerful DirectiveForce Magnets for Fast Heading Lock-on. High Temperature Composite Construction for Extended Operating Range. 100% Repairable. Exclusive 5-Year Ritchie Warranty. Notes Comes standard with 12V lighting. 24V lighting option is available. Some custom built OEM models may have different lighting. Contact Ritchie for replacement lighting. Explorer Compass Features 2-3/4 Easy to Read Direct Reading Dial Viewing is adjustable to 30 Degrees. 12V Night Illumination Built-in Compensators to Easily Adjust for Deviation. Easily Installed, Fits 3 7.62cm Mounting Ho Scientifically Matched Sapphire Jewel Hardened Steel Pivot Dial Movement. Powerful DirectiveForce High Temperature Composite Construction for Extended Operating Range 100% Repairable Exclusive 5-Yea