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

B&G 213 Masthead Wind Sensor Unit - 213-00-002

Digital Yacht OneFix Precision L1/L5 GNSS System - ZDIGONEFIX

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

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

Raymarine RSW Wired Replacement Wind Transducer Mounting Plate - R70950

Raymarine RSW Wired Replacement Wind Gateway - R70946

Raymarine RSW Wired Smart Wind Transducer - E70670

Em-Trak GPS Antenna - 304-0055

Furuno GPS Antenna without Cable - GPA017S/S

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

Garmin GA 38 GPS/GLONASS Antenna

Garmin GST 43 Replacement Paddle Wheel - 010-12344-00

Garmin TD 50 Touchscreen Display - 010-02139-10

Digital Yacht iSeaSense Wireless Speed/Depth/Temperature Instrument Pack - ZDIGISSPK1

Airmar ST800 Thru-Hull Speed & Temperature Sensor

Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

Airmar ST850 Thru-Hull Speed & Temperature Sensor

Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

Airmar 200WX NMEA 0183/2000 RS232 WeatherStation

Airmar D800 Plastic Retractable Thru-Hull Transducer - 170kHz - D800P-170-BG

Airmar ST850 B&G Replacement Insert with Valve - ST850-INS-BG

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

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

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

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

Airmar S63 Transom Mount Speed Sensor - S63-0

Airmar U200 NMEA 2000 to USB Gateway - WS2-USB

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

Airmar ST300 Replacement Insert - ST300-INS-0

Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

Airmar P39 Transom Mount Smart Triducer Multisensor - P39-235-N2

Airmar P79 In-Hull Transducer - 235 kHz

Airmar P79 In-Hull Transducer - 200 kHz

Airmar WeatherStation Cable Extension Adapter

Airmar NMEA 2000 Bronze Tilted Element Smart Sensor - 235 kHz

Airmar ST-650 Speed/Temperature Replacement Insert

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

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

Airmar ST850 Blanking Plug Assembly - 33-522-01

Airmar P39 Transom Wheel Assembly - 33-473-01

Airmar P39 Replacement Bracket Kit - 33-477-01

Airmar ST800 Blanking Plug Assembly - 33-481-01

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

Airmar P17 Plastic Low-Profile Housing - 33-417

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

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

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

Airmar P217 Plastic Flush Mount Housing - 33-217

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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