Simrad RGC50 Gyrocompass Designed for smaller vessels Read more...   Simrad GC85 Compact Gyro System IMO approved Flexible with a wide range of controls Read more...   Simrad GC80 Compact Gyro system IMO approved Flexible with a wide range of control units Read more...   Simrad MX575B DGPS Compass Type-approved as a primary positioning and secondary heading device Stand-alone automatic operation Position updates up to 5 Hz Read more...