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

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

Garmin Airmar T80 External Mount Water Temp Probe - 010-10717-20

Garmin Airmar DT800 Depth/Temperature Smart Sensor - 010-11105-00

Standard Horizon External GPS Antenna - SCU-38

Standard Horizon GPS Smart Antenna - SCU-31

Airmar ST800 Installation Kit - 20-410-01

Em-Trak GPS Antenna - 304-0055

Garmin Intelliducer NMEA 2000 Thru-Hull Transducer

B&G Sail Performance Sensor Pack - 000-15974-001

Furuno GPS Antenna - GPA017

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

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

Airmar NMEA 2000 Stainless Tilted Element Smart Sensor - 235 kHz

Davis Instruments Vantage Pro and EnviroMonitor Anemometer - 6410

Davis Instruments Vantage Pro2 Wireless Weather Station with Standard Radiation Shield and WeatherLink Console - 6252

Davis Instruments Vantage Vue Wireless Weather Station with WeatherLink Console - 6242

Digital Yacht EnvironLink NMEA 2000 Barometer & Marine Weather Station - ZDIGENVLINK

Airmar ST-650 Speed/Temperature Replacement Insert

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

Furuno GPS Antenna without Cable - GPA017S/S

B&G WS300/700 Series Wind Vane Assembly - 000-15144-001

Airmar P79 In-Hull Transducer - 200 kHz

Raymarine RS150 GPS Antenna Pole Mount - A80370

Raymarine RSW Wired Replacement Wind Gateway - R70946

Furuno GPS Navigator

SI-TEX External GPS Antenna - MDA-1-ANT

Digital Yacht GPS Sensor/Antenna - ZDIGGPS160

Airmar P17 Plastic Low-Profile Housing - 33-417

Airmar B122 Bronze Long Stem Retractable Housing - B122-HSG

Davis Instruments Vantage Pro2 Plus Weather Station with Fan Aspirated Radiation Shield and WeatherLink Console - 6263

Garmin GDT 43 NMEA 2000 Depth & Temperature Transducer - 010-01749-10

Airmar 110WX WeatherStation Instrument - WS-110WX

Raymarine P79S In-Hull Smart Transducer

Veratron Rudder Angle Sensor

Garmin gWind Mast Bracket - 010-12117-06

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

Raymarine ST69 Transom-Mount Transducer - E26005

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

Airmar ST850 Blanking Plug Assembly - 33-522-01

Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

Digital Yacht DST810 NMEA2000 Triducer with BT Interface - ZDIGDST810

Humminbird HDR 650 In Dash Digital Depth Sounder - 407860-1

Raymarine P66 Transom-Mount Transducer - E26027-PZ

Airmar Raymarine ST600 Spare Wheel Kit - 33-250

Airmar 110WX NMEA 0183/2000 WeatherStation - WS-110WX-RH

Airmar Bronze Thru-Hull High Precision Temperature Sensor - T42-A

Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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