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 DT800 Thru-Hull Tilted Element Smart Sensor

Simrad GS25 GPS Antenna with Heading Sensor - 000-11043-002

Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

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

Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

Simrad GPS-500 GPS Antenna - 000-13613-001

Airmar ST800 Thru-Hull Speed & Temperature Sensor

Airmar WeatherStation USB Interface Box - WS-USB

Airmar NMEA 2000 Bronze Tilted Element Smart Sensor - 235 kHz

Simrad DST-810 N2K Bronze Triducer Multisensor - 000-15736-001

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

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

Airmar P79 In-Hull Dual Frequency Transducer

Airmar ST850 Thru-Hull Speed & Temperature Sensor

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

Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

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

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

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

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

Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

Simrad SS60 xSonic Thru-Hull Transducer

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

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

Simrad GO9 XSE Suncover - 000-13698-001

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

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

Airmar ST800 Installation Kit - 20-410-01

Simrad NSS9 evo3 and Zeus3 9 Gimbal Mounting Bracket - 000-13758-001

Airmar ST800 Blanking Plug Assembly - 33-481-01

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

Airmar ST-650 Speed/Temperature Replacement Insert

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

Simrad evo3/3S Suncover

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

Airmar B17 Bronze Housing - 33-100

Simrad NSX 3015UW Mounting Bracket - 000-16220-001

Simrad AP44 Autopilot Controller Suncover - 000-13724-001

Simrad GO9 XSE and Vulcan 9 Dash Mount Kit - 000-13699-001

Simrad GO7 XSR and Vulcan 7R Bezel - 000-14230-001

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

Simrad NSX and Vulcan Multifunction Display Dash Mount Kit

Airmar S63 Transom Mount Speed Sensor - S63-0

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

Airmar P217 Plastic Flush Mount Housing - 33-217

Simrad NSX Corner Clip - 000-15822-001

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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