Instruments

About Instruments

Marine Instruments

Sailing navigation is made easy with a variety of electronics offered by Defender. Marine navigation tools, bundles, and a full line of accessories cover all boat navigation needs. Multifunction marine instruments offer an alternative when installation space and budget are tight.

Which marine instruments are important to sailing?

Anyone on the water can benefit from as much information as possible but it could be argued that sailing navigation and wind indicators are the essentials to skippers on sailboats. Depth finders and speed monitors might be seen as sailing frivolity, but any sailor would be happy to have these marine instruments in their electronics package.

Sailing into the wind

Technically there is no such thing. Sailing directly into the wind cuts down the angle and doesn't allow the sails to capture the wind, which propels the boat. Here's where sailing navigation tools and packages come into play. Wind indicators monitor the strength and direction of the wind while navigating correctly to capture the wind is essential.

How to navigate your cruise

Here's where depth finders, plotters, and temperature gauges become a more important part of your sailing navigation package. Cruising on your sailboat means less about wind and more about other boats, obstacles, and, of course, finding your way home. Defender Marine offers full sailboat navigation packages and multifunction marine electronics units for the family sailboat and the competitive team!

Instruments

Airmar B17/B617/DT800 Replacement Rubber Washer - 09-452

Airmar P79 In-Hull Transducer O-Ring - 09-518-18

Airmar WeatherStation Cable Extension Adapter

Veratron AquaLink NavControl Display Bezel - A2C3997600001

Airmar P66 Plastic Cover Assembly - 04-349-02

Faria Universal Pitot Kit - 91109

Airmar P79 Replacement Mounting Base and Locking Ring - P79-FL

Airmar 33-108 Wheel Kit Replacement Paddlewheel - 20-301-01

Airmar S300/ST300 Spare Paddlewheel Kit - 33-350-01

Airmar ST-200 Spare Wheel Kit - 33-114

Garmin gWind Mast Bracket - 010-12117-06

Raymarine Spade Connectors - Q085

Garmin gWind & GND 10 Replacement Propeller - 010-12117-08

Airmar P65/ST69 Transducer Paddlewheel Kit - 33-398-01

Airmar P32 Spare Wheel Kit

Raymarine T911 Paddle Wheel Replacement Kit - TA900

Airmar ST-550/100 Spare Wheel Kit - 33-108

Airmar Replacement Blanking Plug Assembly without Valve - 33-486-01

Airmar P317 Plastic Taper-Flush Housing - 33-092-01

Airmar P217 Plastic Flush Mount Housing - 33-217

Airmar P17 Plastic Low-Profile Housing - 33-417

Airmar P39 Replacement Bracket Kit - 33-477-01

Airmar B122 Low-Profile Flange Adapter Ring - 33-634-02

Airmar S63/P37/P52 Spare Wheel Kit - 33-110

Airmar P39 Transom Wheel Assembly - 33-473-01

Airmar ST800 Blanking Plug Assembly - 33-481-01

Airmar Replacement Blanking Plug Assembly with Valve - 33-482-01

Raymarine Instrument Display Bezel - R22168

Standard Horizon External GPS Antenna - SCU-38

Airmar Raymarine ST600 Spare Wheel Kit - 33-250

Airmar ST600 Blanking Plug Assembly - 20-600

Veratron OceanLink TFT Display Bezel - 7" - A2C1697540001

Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

Airmar ST-800 Paddlewheel Kit - 33-493-01

Raymarine Anemometer Replacement Wind Cup Set - TA101

Raymarine ST Paddle Wheel Kit - R69015

Veratron AcquaLink TFT Display Bezel - 7" - A2C3995200001

Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

Airmar ST850 Blanking Plug Assembly - 33-522-01

Raymarine ST50 Masthead Wind Transducer Service Kit - E28081

Airmar S63 Transom Mount Speed Sensor - S63-0

Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

FLIR AX8/Dragonfly Free Standing Mount - R70375

Raymarine RS150 GPS Antenna Pole Mount - A80370

Airmar P398 Shorty Sensor Speed/Temperature Taper-Flush Housing - 33-444-02

Airmar ST800 Installation Kit - 20-410-01

Airmar P617V Plastic Low-Profile Housing with Valve - 33-510-01

Raymarine Alpha Performance Display Power Cable

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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