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 DST810 Smart Multisensor

Airmar UDST800 Thru-Hull Ultrasonic Smart Multisensor

Airmar 200WX Apparent & True Wind WeatherStation Instrument - WS-200WX

Airmar DT800 Thru-Hull Tilted Element Smart Sensor

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

Airmar 110WX WeatherStation Instrument - WS-110WX

Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

Airmar 235 kHz NMEA 2000 Bronze Tilted Element Smart Sensor

Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

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

Airmar DST800 P617V Housing Install Kit - 33-584-02

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

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

Airmar ST800 Thru-Hull Speed & Temperature Sensor

Standard Horizon External GPS Antenna - SCU-38

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

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

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

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

Airmar ST850 Thru-Hull Speed & Temperature Sensor

Airmar ST800 Installation Kit - 20-410-01

Standard Horizon GPS Smart Antenna - SCU-31

Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

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

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

Airmar B17 Bronze Housing - 33-100

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

Airmar P66 Replacement Paddlewheel Assembly - 33-346-03

Airmar S63 Transom Mount Speed Sensor - S63-0

Airmar P23/P32 Mounting Bracket Kit - 20-154

Airmar ST800 Blanking Plug Assembly - 33-481-01

Airmar Raymarine ST600 Spare Wheel Kit - 33-250

Airmar P66 Transom Mounting Bracket Kit - 33-479-01

Airmar P66 Bracket Assembly Wedge and Cover Kit - 20-390-01

Airmar ST600 Blanking Plug Assembly - 20-600

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

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

Airmar P17 Plastic Low-Profile Housing - 33-417

Airmar P58 Transom Paddlewheel Kit - 33-492-01

Airmar ST850 Blanking Plug Assembly - 33-522-01

Airmar ST-650 Speed/Temperature Replacement Insert

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

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

Airmar P32 Triducer Replacement Paddlewheel - 20-143-1

Airmar DST800 Non-Valve Housing O-Ring Kit - 20-519-01

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

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

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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