The Garmin 9-axis Heading Sensor (010-11417-20) is a premium, high-precision electronic compass solution designed to deliver exceptional heading accuracy and real-time boat orientation over an NMEA 2000® network. Utilizing advanced 9-axis MEMS technology, it provides heading output accurate to within ±2 degrees at a fast 10 Hz refresh rate, maintaining alignment even at slow speeds, during heavy pitch and roll, or when a sailboat is heeled over.

By delivering precise heading, rate of turn (10 Hz), and attitude data (1 Hz trim and heel), the unit locks your chartplotter display with real-world orientation, stabilizes radar overlays, and ensures accurate MARPA target tracking. Its solid-state design allows versatile installation in any orientation away from magnetic interference, and it features an easy 2-step menu-based calibration process on compatible Garmin chartplotters. Housed in a fully gasketed, IPX7 waterproof enclosure, it is built to perform reliably in demanding bilge and marine environments.