Using the positioning data, water elevation and pitch, roll and heading information, X, Y and Z data is produced and a 3D image can be built up of the marina bottom.

The sensor is a digital magnetic compass that combines the latest in gyro technology with advanced digital magnetic compass hardware and software. Azimuth accuracy is 0.5 degree with 0.1 degree resolution. Inclination range is ± 80°. The gyro compensates for short term transient magnetic disturbances, keeping the heading output accurate