The Furuno SC33 Satellite Compass is the direct replacement for the SC30.
Units are available now for pre-order.
The SC33 Satellite Compass provides highly accurate attitude information for navigation equipment such as Radar, Plotter, Autopilot, Fish Finder and Sonar. With its compact GNSS antenna and built-in processor, it can be used for a wide variety of applications on any type of vessel. This all-in-one system delivers incredibly accurate heading and roll & pitch information as well as heaving information, GPS position, SOG (Speed Over Ground), COG (Course Over Ground) and ROT (Rate Of Turn) data.
Check out this video of the Furuno SC33.