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

Maretron N2KView Vessel Monitoring & Control Touchscreen Display - TSM810C-01

Maretron Ultrasonic Wind and Weather Station - WSO200

Airmar DT800 Thru-Hull Tilted Element Smart Sensor

Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

Maretron NMEA 2000 Multifunction Color Display - DSM410-01

Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

Maretron High-Resolution Color Display - 5.7" - DSM570-01

Airmar 235 kHz NMEA 2000 Bronze Tilted Element Smart Sensor

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

Airmar ST800 Thru-Hull Speed & Temperature Sensor

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

Maretron N2KView Vessel Monitoring & Control Software - N2KVIEW

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

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

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 ST800 Installation Kit - 20-410-01

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

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

Airmar ST850 Thru-Hull Speed & Temperature Sensor

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

Airmar ST300 Replacement Insert - ST300-INS-0

Maretron GPS Antenna/Receiver - GPS200-01

Airmar WeatherStation USB Interface Box - WS-USB

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

Maretron Depth/Speed/Temperature Retractable Smart Triducer - DST110-01

Maretron Marine Alarm Module - ALM100-01

Airmar S63 Transom Mount Speed Sensor - S63-0

Airmar P17 Plastic Low-Profile Housing - 33-417

Airmar ST800 Blanking Plug Assembly - 33-481-01

Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

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

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

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

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

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

Airmar ST-650 Speed/Temperature Replacement Insert

Airmar P217 Plastic Flush Mount Housing - 33-217

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

Airmar ST850 Blanking Plug Assembly - 33-522-01

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

Airmar B17 Bronze Housing - 33-100

Airmar ST-200 Spare Wheel Kit - 33-114

Airmar Raymarine ST600 Spare Wheel Kit - 33-250

Airmar ST600 Blanking Plug Assembly - 20-600

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

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