Pelorus

Discover our professional-grade Pelorus navigation tools — essential marine bearing devices for accurate azimuth and relative bearing measurements at sea.

A Pelorus (or "dumb compass") features a graduated card with sighting vanes/alidade for observing bearings on landmarks, aids to navigation, celestial bodies, or other vessels, independent of magnetic influence — ideal for compass deviation checks (swinging the compass), taking transits, plotting fixes, predicting crossings, or collision avoidance.

The featured Autonautic Pelorus (bracket mount model) includes a rotating aluminium azimuth ring, brass sight, 1° graduations on a 125mm flat card, 360° cardinal ring, gimballed suspension for stability, and convenient wooden storage box with dual mounting positions (storage + operational).

Supplied with instructions for easy setup on yachts, powerboats, or larger vessels. Perfect for serious navigators, professional mariners, and compass adjusters needing reliable, non-electronic bearing precision — shop high-quality marine Pelorus devices with fast UK & worldwide delivery.