Designed for marine navigation, these RITCHIE compasses provide reliable heading performance with DirectiveForce magnets for quick lock-on and smooth dial movement using jewel and pivot construction. Common features include built-in compensators for easy deviation adjustment, movable sun shield, lubber lines and built-in green illumination/backlight. Models in the line are 100% repairable and carry an exclusive 5-year Ritchie warranty. Standard lighting is 12V with 24 & 32V options available; mounting style and read orientation vary by model.