Voyager Compass Features: * 3″ (76 mm) PowerDamp Flat Dial * Easily Installed into a 3 1/2″ hole * Exclusive Built-in Green NiteVu Night Illumination * Built-in Compensators to Easily Adjust for Deviation * Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement * Powerful DirectiveForce Magnets for Fast Heading Lock-on * Movable Sun Shield * 45 Degree Lubber Lines * High Temperature Composite Construction for Extended Operating Range * 100% Repairable * Exclusive 5-Year Ritchie Warranty Approx. Shipping Weight: 1lb 8oz (680g) Notes: All magnetic compasses come standard with 12v lighting. 24 & 32v lighting options are available.