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 S63 Transom Mount Speed Sensor - S63-0

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

Davis Instruments 4-Conductor Extension Cable

Furuno Pipe Mount Kit for GP330B - 001-041-560

Davis Instruments Sensor Mounting Shelf - 6673

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

Davis Instruments Weather Station Mounting Pole Kit - 7717

Airmar Wiring Box with Screw Terminals - 33-035-BOX

Lowrance PDRT-WSU Pod Transducer with Remote Temperature Sensor - 000-0106-69

Davis Instruments 2-Wire Termination Temperature Probe - 6470

Airmar DX900 Installation Kit and Housing - 20-1256-01

Lowrance Thru-Hull Temperature Sensor - 000-11521-001

Newmar Digital Instrument Relay - DIR

Maptech Navigation USB GPS Receiver - MTUSBGPS

HawkEye DepthTrax 2B Depth Finder - DT2B-TM

Airmar ST300 Replacement Insert - ST300-INS-0

Standard Horizon GPS Smart Antenna - SCU-31

Scout GPS/GLONASS Antenna - 3" (7 cm) - NAV-6

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

Lowrance Fluid Level Sensor - 000-11518-001

Airmar ST300 Thru-Hull Shorty Speed/Temperature Sensor - ST300-FISO

Lowrance Speed Sensor Pack - 000-11519-001

Lowrance Temperature Sensor - 000-11520-001

Lowrance Fuel Data Manager - 000-11522-001

Airmar Transom Speed/Temperature Sensor with Furuno 6-Pin - ST-01PTB

Veratron Rudder Angle Sensor

Furuno GPS Antenna without Cable - GPA017S/S

Veratron GO Receiver

Airmar ST850 Thru-Hull Speed & Temperature Sensor

Airmar B17 Bronze Housing - 33-100

Simrad ST850 Speed/Temperature Sensor - 22098586

Davis Instruments Radiation Shield - 7714

SeaStar Teleflex/Sierra In-Dash Digital Depth Finder with Transducer - 2" - 26000P

Furuno GPS Antenna - GPA017

Furuno GPS Antenna - GPAC01

Sierra GPS Receiver - 68982P

Faria Thru-Hull Depth/Temp Transducer - SN0036A

Faria Thru-Hull Depth Transducer - SN2060A

Furuno Plastic Thru-Hull Speed and Temperature Insert - ST-02PSB

Airmar ST800 FISO 5-Pin Replacement Insert - ST800-INS

Airmar ST-650 Speed/Temperature Replacement Insert

Faria Transom Mount Depth Transducer - SN2011

Airmar P79 In-Hull Transducer - 235 kHz

Airmar B120 Bronze Low-Profile Housing - 33-340-01

Simrad Pole Mount Kit for HS75 GNSS Compass - 000-15686-001

Airmar ST800 Thru-Hull Speed & Temperature Sensor

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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