Voyager CompassFeatures: 3" (76 mm) CombiDial Adjustable and Removable with Bracket and Thumbscrews 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 Custom Fitted Protective Covers Available 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: Bracket Backlight: Yes Lubber Lines: Yes Box Dimensions: 6"H x 6"W x 6"L WT: 1.4 lbs UPC: 010342141101 Quick Guide (pdf)Owner&';s Manual (pdf)