Ritchie Explorer F50

This compass series is for fast runabouts, bass boats, center consoles and sport boats. Flush mount type, white case. Features include built-in compensator magnets, 12V DC night lighting, jewel and steel pivot movements and movable sunshades. 
Features include built-in compensator magnets, 12V DC night lighting.
2 3/4" Easy to Read Direct Reading Dial.  Easily Installed, Fits 3.75" (9.53 cm) Mounting Hole.  Internal Green Night Illumination.
Built-in Compensators to Easily Adjust for Deviation.
Scientifically Matched Sapphire Jewel & 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.