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 UDST800 Thru-Hull Ultrasonic Smart Multisensor

Airmar DST810 Smart Multisensor

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

Airmar DT800 Thru-Hull Tilted Element Smart Sensor

Airmar 110WX WeatherStation Instrument - WS-110WX

Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

Airmar NMEA 2000 Bronze Tilted Element Smart Sensor - 235 kHz

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

Airmar B122 Long Stem Thru-Hull Smart Multisensor - 235 kHz

Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

Airmar ST800 Thru-Hull Speed & Temperature Sensor

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

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

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

Airmar ST850 Thru-Hull Speed & Temperature Sensor

Airmar WeatherStation USB Interface Box - WS-USB

Airmar 200WX NMEA 0183/2000 IPX7 WeatherStation - WS-200WX-RS422

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

Airmar P79 In-Hull Dual Frequency Transducer

Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

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

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

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

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

Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

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

Airmar ST300 Replacement Insert - ST300-INS-0

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

Airmar ST800 Blanking Plug Assembly - 33-481-01

Airmar P79 In-Hull Transducer - 235 kHz

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

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

Airmar B17 Bronze Housing - 33-100

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

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

Airmar P17 Plastic Low-Profile Housing - 33-417

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

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

Airmar ST-650 Speed/Temperature Replacement Insert

Airmar S63 Transom Mount Speed Sensor - S63-0

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

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

Airmar ST800 Installation Kit - 20-410-01

Airmar ST850 Blanking Plug Assembly - 33-522-01

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

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

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

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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