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 ST650 Valve Assembly - 20-603

Airmar B55 Speed Only Thru-Hull Triducer Spare - 33-125

Airmar P8 Shorty Sensor Low-Profile Housing - 33-360-01

Airmar NMEA 0183 Bronze Tilted Element Smart Sensor - 235 kHz

Airmar NMEA 0183 Plastic Tilted Element Smart Sensor - 235 kHz

Airmar NMEA 0183 Stainless Tilted Element Smart Sensor - 235 kHz

Airmar P79 In-Hull Transducer - 235 kHz

Airmar 150WXS NMEA 0183/2000 WeatherStation - WS-150WXS-RS422

Airmar 110WXS NMEA 0183/AG WeatherStation - WS-110WXS-RS232

Airmar 110WXS NMEA 0183/2000 WeatherStation - WS-110WXS-RS422

Airmar P52 Transom Mount DST Triducer - P52-200-6G

Airmar Apelco/Raytheon 7-Pin Extension Cable - 19.5' (6 m) - M99001-26-20

Airmar WAAS/EGNOS Enabled NMEA 0183/2000 GPS Antenna - G2183

Airmar CS4500 Ultrasonic ST850 Style Insert - CS4500-850

Airmar B17-HP Thru-Hull High Precision Temperature Sensor - B17-S-TEMP

Airmar B122 Low-Profile Flange Adapter Ring - 33-634-02

Airmar UST850 Ultrasonic Smart Sensor Insert - UST850-INS

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

Airmar B619 Garmin Thru-Hull Transducer - 77/200kHz

Davis Instruments Daytime Fan Aspirated Radiation Shield Kit - 7747

Davis Instruments Vantage Vue Wireless Integrated Sensor Suite - 6357

Davis Instruments Vantage Pro2 Sensor Suite Wireless Weather Station with Fan Aspirated Radiation Shield - 6323

Davis Instruments Vantage Pro2 Plus Sensor Suite Wireless Weather Station with Fan Aspirated Radiation Shield - 6328

Davis Instruments Wireless Anemometer/Sensor Transmitter Kit - 6332

Davis Instruments Long Range Repeater with Solar Power - 7654

Davis Instruments Long Range Repeater Omni Antenna - 7656

Davis Instruments Long Range Repeater Yagi Antenna - 7660

Davis Instruments Standard Wireless Repeater with Solar Power - 7627

Davis Instruments Solar Radiation Sensor - 6450

Davis Instruments UV Radiation Sensor - 6490

Davis Instruments Sensor Mounting Shelf - 6673

Davis Instruments Radiation Shield - 7714

Davis Instruments Sonic Anemometer - 6415

Davis Instruments Vantage Pro2 Weather Station with Fan Aspirated Radiation Shield and WeatherLink Console - 6253

Davis Instruments Vantage Pro2 Plus Wireless Weather Station with Radiation Sensors and WeatherLink Console - 6262

Davis Instruments 2-Wire Termination Temperature Probe - 6470

Davis Instruments RJ Connector Temperature Probe

Davis Instruments Integrated Sensor Suite with Standard Radiation Shield

Davis Instruments 4-Conductor Extension Cable

About Instruments

Marine Instruments

Which marine instruments are important to sailing?

Sailing into the wind

How to navigate your cruise

2Filters

Change Locale

Explore

Helpful Information

Get In Touch

Resources

Stay Connected