Davis Instruments

Quick Reference Celestial Navigation CardA simplified, yet complete Celestial Navigation system. Includes everything you need: sextant use and corrections, star finder for 18 stars, data entry form,...

Quick Reference Coastwise Piloting CardAll the piloting information you need at your fingertips: dead reckoning basics, true and magnetic compass relationships, position finding, estimating distance...

Quick Reference International Navigation Rules CardA comprehensive guide incorporating the International Maritime Buoyage System and COLREGS. Clarifies differences between Cardinal and Lateral...

Quick Reference Navigation Rules CardA proven navigation tool used by the US Coast Guard, US Coast Guard Auxiliary, and US Power Squadron. Navigation Rules feature the US. Buoyage System, inland and...

Quick Reference Weather Forecasting CardShows the use of wind direction, barometric pressure, and cloud type in predicting the weather, plus a full list of radio weather stations for official...

Radiation ShieldThe most effective passive shelter available. Protects your Temperature or Temperature/Humidity Sensor from solar radiation and other sources of radiated and reflected heat...

Rain Collector HeaterThis product will work with our Vantage Pro and Vantage Pro2 wireless weather stations, however, the heater must be plugged into an electrical outlet. This product cannot be used...

Rocker Stopper Boat Stabilizer Rocker Stoppers help dampen the rocking motion of boats at anchor. Simply tie Rocker Stoppers approximately 44 cm (18″) apart, making a string of them, with a...

Round Sail Track StopsRound 0.50" dia. x 0.875" (13 x 22mm)When it's time to lower your sail you can rely on Davis' Round Sail Track Stop to hold your sail and its slides in place on the mast and...

Rudder Position IndicatorAwareness of the rudder angle is an important safety factor. This is especially true while moving in and out of your berth, drawing alongside another boat, picking up a...

Secure Removable Chafe Guards - Black (Pair)Chafe protection is critical at the dock, at anchor, or on a mooring. The Chafe Guard is a good solution to prevent chafing over a cleat, cap rail, where...

Secure Removable Chafe Guard - White (Pair)Chafe protection is critical at the dock, at anchor, or on a mooring. The Chafe Guard is a good solution to prevent chafing over a cleat, cap rail, where...