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Garmin SteadyCast Heading Sensor

Know Where You’re Actually Casting

  • Ensures bow orientation on your chartplotter matches your heading
  • Heading accuracy of plus or minus 3 degrees
  • Easy NMEA 2000® plug-and-play interface
  • Simple 2-step calibration process
  • 9-axis MEMS technology allows installation in any orientation located away from magnetic interference

SteadyCast heading sensor is a simple, easy-to-install solution that provides fast calibration and premium heading accuracy. It aligns your boat bow to its actual orientation so you know where you are casting according to your chartplotter screen.

Accurate Heading Even at Low Speed

Its heading output rate at 10 Hz and accuracy of plus or minus 3 degrees ensures your chart orientation and boat heading line match up with reality, even at trolling speeds or when dead in the water.

Effective in Rough Waters

You can also be confident your heading information will remain accurate, even in rough water.

Easy Installation, Fast Calibration

SteadyCast heading sensor installs easily with NMEA 2000® plug-and-play interface and a simple 2-step precision calibration process for compatible Garmin chartplotters. Basic calibration for displays other than Garmin is also supported. Its 9-axis MEMS technology allows installation in any orientation located away from magnetic interference, and it’s built to withstand bilge environments.


  • Dimensions (LxWxH): 3.4” x 2.1” x 1.3” (86.3 x 52.9 x 33.7 mm)
  • Weight: 0.4 lbs (0.182 kg)
  • Default heading output: 10 Hz
  • Output heading with +/-3 degree accuracy
  • Water rating: IPX7
  • LEN: 2
  • Operating voltage: 9 VDC to 32 VDC
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Garmin GPSMAP 521 User's Manual

garmin steadycast

Package Includes:
• SteadyCast heading sensor with integrated NMEA 2000® drop cable (6 ft)
• NMEA 2000® T-connector

• Documentation



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Garmin SteadyCast Heading Sensor

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