Ritchie Explorer Compass - Flush Mount - Black. Ritchie designed these Compasses with a green illuminated directional reading for nighttime use and these Ritchie F-50 Marine Compass Sleeves have a detachable sun shield to protect the components. For those trying to get a reading even when there's no light the Ritchie F-50 Companion Compass has a magnetic heading memory of up to 5 years. This enables the compass to remember the last direction it was set when powered down. Whether you need a reliable boat heading sensor or an accurate fishing compass Ritchie F-50 Compass Sleeves are the reliable fixers you're looking for. Specifications for Ritchie F-50 Explorer Compass: Manufacturer: Ritchie Color: Black Features of Ritchie F-50 Explorer Compass 2-3/4" Easy to Read Direct Reading Dial Easily Installed Fits 3.75" (9.53 cm) Mounting Hole. (NOTE: Be sure you print the template Actual size) 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 100percent Repairable Exclusive 5-Year Ritchie Warranty Approx. Shipping Weight: 1lb (454g) Comes standard with 12V lighting. 6 & 24V lighting options are available. Some custom built OEM models may have different lighting. Contact Ritchie for replacement lighting. Package Contents: Ritchie F-50 Explorer Compass Ritchie F-50: F-50 Explorer Compass - Flush Mount - Black