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

Raymarine D800/P17 Thru-Hull Retractable Transducer - E26030

Raymarine Wind Transmitter Battery Pack & Seal Kit - TA125

Raymarine i50 Depth Instrument Display - E70059

Airmar Simrad P79 In-Hull Adjustable Angle Transducer - P79-BL

Airmar ST300 Replacement Insert - ST300-INS-0

Raymarine Long-Arm Forward Wind Transducer - E22079

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

Raymarine ST Paddle Wheel Kit - R69015

Raymarine i50 Speed Instrument Display - E70058

Raymarine Spade Connectors - Q085

Airmar P79 In-Hull Transducer - 200 kHz

Raymarine Rotavecta Wind Transducer - Z195

Raymarine P19 Thru-Hull Low Profile Tilted Element Transducer - M78713-PZ

Raymarine ST60 Wind Transducer Service Kit - A28167

Airmar ST800 Blanking Plug Assembly - 33-481-01

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

Airmar P39 Transom Mount Smart Sensor - P39-DT-N2

Raymarine RSW Wired Replacement Wind Gateway - R70946

Raymarine P7 Thru-Hull Low Profile Shorty Transducer - E26009

Raymarine i50 Speed System with ST900/P120 Retractable Speed/Temp Thru-Hull Transducers - T70583

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

Raymarine ST300/P371 Thru-Hull Low-Profile Shorty Transducer - E26008

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

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

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

Airmar 110WX WeatherStation Instrument - WS-110WX

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

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

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

Raymarine B17 Thru-Hull Retractable Transducer - M78717

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

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

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

Raymarine ST950/P17 Speed and Temperature Transducer - E70687

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

Airmar P17 Plastic Low-Profile Housing - 33-417

Airmar ST-650 Speed/Temperature Replacement Insert

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

Airmar B122 Bronze Long Stem Retractable Housing - B122-HSG

Raymarine P79S In-Hull Smart Transducer

Raymarine Instrument Display Bezel - R22168

Airmar ST600 Blanking Plug Assembly - 20-600

Raymarine RS150 GPS Antenna Pole Mount - A80370

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

Airmar B17 Bronze Housing - 33-100

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

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

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

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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