NMEA 2000 Satellite Compass with multi-band GNSS and Multi-Constellation for enhanced accuracy! The Garmin Marine Satellite Compass (MSC) 10 features Multi-Band and Multi Constellation (GPS, Galileo, GLONASS and BeiDou) receivers to provide precise positioning when it matters most. Now you re able to get reliable, accurate boat heave, pitch and roll information even in roughest of water conditions. You re able to use Garmin s MSC 10 as a primary sensor for autopilots and other onboard systems that require accurate heading information. By using multiple receiver sources, the MSC10 can provide an accurate heading down to 2 degrees. Unlike other compasses, you can forget about having magnetic interference because the MSC10 uses Satellite Signals. When pairing Garmin s MSC 10 with a compatible radar, you're insured to get the most accurate target trails instead of jagged and zig zag ones that you may have seen in the past. The Garmin Reactor Autopilot series can benefit from the MSC 10 making sure your headings are accurate and consistent thus getting you to your destination quicker and saving fuel along the way. The MSC10 is NMEA 2000 compliant which makes it plug and play with any existing NMEA2000 networks that may already be installed on your vessel.