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 ST300 Shorty Blanking Plug Assembly - 33-386-01

Airmar ST-650 Speed/Temperature Replacement Insert

Airmar NMEA 0183 Stainless Tilted Element Smart Sensor - 235 kHz

Airmar 150WX NMEA 0183/2000 WeatherStation - WS-150WX-RS232

Airmar S63 Transom Mount Speed Sensor - S63-0

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

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

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

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

Airmar P39 Transom Wheel Assembly - 33-473-01

Airmar P39 Replacement Bracket Kit - 33-477-01

Airmar ST850 Blanking Plug Assembly - 33-522-01

Airmar NMEA 2000 Stainless Tilted Element Smart Sensor - 235 kHz

Airmar P52 Transom Mount DST Triducer - P52-200-6G

Airmar P79 Replacement Screw Pack - P79-SCREWPACK

Airmar 33-108 Spares Kit O-Ring - 09-146

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

Airmar B17 Bronze Housing - 33-100

Airmar P217 Plastic Flush Mount Housing - 33-217

Airmar Shorty Sensor Speed/Temperature Low-Profile Housing - 33-361-01

Airmar P66-DT Transom Mount Transducer

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

Airmar P66 Plastic Cover Assembly - 04-349-02

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

Airmar P32 Transom Mount DST Triducer - P32-200-VDO

Airmar 33-108 Paddle Wheel Kit Replacement Shaft - 01-088-1

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

Airmar ST-200 Spare Wheel Kit - 33-114

Airmar P32 Spare Wheel Kit

Airmar WeatherStation Cable Extension Adapter

Airmar Apelco/Raytheon 7-Pin Extension Cable - 19.5' (6 m) - M99001-26-20

Airmar WAAS/EGNOS Enabled NMEA 0183/2000 GPS Antenna - G2183

Airmar CS4500 Ultrasonic ST850 Style Insert - CS4500-850

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

Airmar B122 B&G Replacement Plastic Insert - B122-170-INS-BG

Airmar B122 Bronze Long Stem Retractable Housing - B122-HSG

Airmar B619 Garmin Thru-Hull Transducer - 77/200kHz

Airmar CS4500 Ultrasonic Speed & Temperature Sensor

Airmar WeatherStation Cable Adapter - 04-564-03

Airmar 33-114 Spares Kit O-Ring - 09-145

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

Airmar 33-113/33-114 Paddle Wheel Kit Replacement Shaft - 01-088-5

Airmar Snap-In Smart Sensor Cap - 20-386-03

Airmar DT800 Bronze Installation Kit - 20-398-02

Airmar Stuffing Tube Bushings - 20-488-01

Airmar ST650 Valve Assembly - 20-603

Airmar B55 Speed Only Thru-Hull Triducer Spare - 33-125

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

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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