Voyager CompassFeatures: 3" (76 mm) CombiDamp Dial Easily Installed 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 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.Uses 2 sets of lights. Specifications: Read: Both Mounting Style: Flush Lubber Lines: Yes Backlight: Yes Box Dimensions: 5"H x 8"W x 9"L WT: 1.2 lbs UPC: 010342141002 Quick Guide (pdf)Owner&';s Manual (pdf)