Furuno SC33 Compact Dome Satellite Compass, NMEA2000 (0.4 Heading Accuracy) w/6M Cable

When you demand extreme accuracy in a compact package, the Furuno SC33 satellite compass delivers. This is a high-precision multi-GNSS satellite compass that provides an incredible 0.4-degree heading accuracy. It packs its advanced technology into a sleek, compact dome that is significantly smaller than previous satellite compass models. It is completely immune to magnetic interference, making it a perfect upgrade for any vessel, fiberglass or steel. It outputs its highly accurate data over a standard NMEA 2000 network.

The SC33’s stunning accuracy comes from its advanced inertial sensors and satellite vector stabilization algorithms. This solid-state design means no moving parts. The rugged dome is rated IPX6 and IPX7, meaning it can withstand powerful jets of water and even temporary submersion. It is designed to be pole-mounted or surface-mounted and comes with a 6-meter cable included, simplifying the installation process. It provides professional-grade heading and stabilization data for autopilots, sonars, and radars.

Helm Use and Readability

The SC33 is a background player that dramatically improves the performance of your helm displays. With its 0.4-degree accuracy, your autopilot will steer with incredible precision, saving fuel and providing a smoother ride. Your radar and chartplotter overlays will be perfectly aligned. If you have advanced sonar, the SC33’s heave compensation feature will stabilize the picture, allowing you to see targets more clearly in rough seas. It makes your existing equipment work better.

Why Choose the Furuno SC33 Compact Dome High-Precision Multi-GNSS Satellite Compass

You choose the SC33 satellite compass when you need the highest level of accuracy and stability for your navigation suite. Its 0.4-degree heading accuracy and heave compensation capabilities are its key selling points. It is a critical component for getting the most out of advanced Furuno systems like DFF3D multi-beam sonar. For serious sportfishing captains or any mariner who demands the best data, the SC33 is a powerful and surprisingly compact solution.

Warranty and Support

This high-precision instrument is backed by Furuno’s 2-Year Manufacturer’s Warranty. For complex integration questions, the expert support team at is available to help before you purchase. This model includes a 6m cable, and the contents are verified before shipping. We recommend reviewing the full warranty policy on .

Before Ordering the Furuno SC33 Compact Dome High-Precision Multi-GNSS Satellite Compass

Before buying, confirm you have a compatible NMEA 2000 network and a suitable mounting location with a clear sky view. While it comes with a 6-meter cable, double-check that this is long enough for your planned installation run. To access its advanced features like heave compensation, ensure your sonar or other equipment is compatible and configured to use that data.