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Marine Sensors

Compass Sensors

The Autonnic Compass Sensor uses fluxgate technology to provide the most accurate magnetic heading, meeting the requirements of all navigation displays and devices on board. The electronic compass unit is weather tight, allowing an optimal installation position inside or outside the hull.  The compass works by taking the magnetic heading and converting it into a digital signal for use by chart plotters, Autopilots, AIS systems and other electronic devices onboard.

In the A5041 gyro model, heading output is additionally derived by integrating the rate output from a MEMS yaw accelerometer or ‘gyro’ which is drift-corrected by a fluxgate magnetometer with pitch and roll compensation up to 45°.

  • Magnetic heading data

  • Pitch and roll compensated

  • Auto Calibration

  • 12/24V

  • Water resistant to IP68

  • 5 versions available

A5023  (to special order)



NMEA-0183 with AD-10


NMEA-0183  with gyro


NMEA-2000 compatible


NMEA-2000  compatible    with gyro

Compass Pick Up Sensor

The A4032 Autonnic Compass Pick Up Sensor takes the magnetic data generated by an existing yacht compass and converts it into NMEA0183 data to use for a variety of on-board purposes. The Pick Up Sensor avoids the need to install a standalone compass unit minimising cost and system complexity. Its roots are found in larger vessels where the ship’s compass is precisely calibrated and for certification purposes acts as the reference point for all navigation systems.

  • Attaches to ships compass

  • Mounting ring included with lock screw

  • Centre bolt for easy fixing

  • Magnetic heading data

  • Manual Calibration using PC

  • 12/24V

  • Calibration at 10 or 20 degree intervals



IP68 Wind Sensors
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The Autonnic Masthead Wind Sensor provides reliable and accurate information about the speed and direction of the wind working against a yacht. The unit is built to last using robust, quality materials and is able to withstand the harshest marine environments.

Available in 3 sizes: 

     N    Normal for sailing cruising

     E     Extended for racing

     P     A shorter version for Power boats



(can be used with 2K systems with converter below)


for NMEA-2000 systems

  • Wind speed and direction

  • Robust

  • 12/24V

  • Zero set-up feature


NMEA0183 to 2000  Converter for wind

The A5905 allows a NMEA0183 wind head sensor to be connected to a NMEA2000 system without requiring new mast wiring.  Provides power to the 0183 Masthead Sensor from the 2000 bus.

  • Takes in 0183 Wind data

  • Delivers NMEA-2000 Wind data

  • Can use existing masthead cable

  • Zero set-up button

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