Inertial measurement unit which combined with the GPS Compass can deliver:
True heading, anywhere in the world
Sensitive 3 D measurement (pitch, roll, yaw)
For accurate autopilot operation and clean wind data.
3D fusion is a 9 axes inertial measurement unit. Connected to the GPS Compass, it merges 3 D boat movements and true heading. True heading is available at 25 Hz with high accuracy and calibration is not required. Data lag is divided by 4