Navigator CompassFeatures: 4 1/2" (115 mm) Open Face Dial with Large Numerals Easily Installed, Fits 4.75" (121 mm) to 5.125" (130 cm) Mounting Hole. Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement Powerful DirectiveForce Magnets for Fast Heading Lock-on 12v Green LED lighting Standard Built-in Compensators to Easily Adjust for Deviation Movable Sun Shield 45 Degree Lubber Lines High Temperature Construction for Extended Operating Range 100% Repairable Exclusive 5-Year Ritchie Warranty Approx. Shipping Weight: 2lbs 10oz (1.19 kg)Notes:12v lighting standard - 24 & 32v lighting options are available. Specifications: Read: Rear Lubber Lines: Yes Backlight: Yes Mounting Style: Flush Box Dimensions: 7"H x 8"W x 8"L WT: 2.9 lbs UPC: 010342150080 Quick Guide (pdf)Owner&';s Manual (pdf)