Garmin 9-Axis Heading Sensor

The Garmin 9-Axis Heading Sensor (Model 010-11417-20) is a premium marine navigation instrument designed to deliver exceptional heading accuracy in conditions where conventional magnetic compasses and single-axis sensors fail. Built for boats operating in dynamic marine environments—whether navigating coastal passages, offshore fishing grounds, or congested waterways—this 9-axis sensor combines accelerometers, gyroscopes, and magnetometers to maintain precise directional data regardless of vessel motion or speed.

The sensor outputs heading and rate-of-turn data at 10 Hz refresh rate, critical for autopilot systems, electronic chart plotters, and advanced navigation software that demand real-time directional input. With heading accuracy of ±2 degrees, the Garmin 9-axis sensor performs reliably even when the bow pitches, rolls, or heels over—conditions that degrade accuracy in conventional compass systems. Fast calibration and straightforward installation mean minimal downtime and integration with existing Garmin marine electronics. The compact 6 x 5 x 8-inch footprint weighs just 1.3 lbs, making it suitable for mounting in tight engine room spaces or electronics enclosures aboard vessels of all sizes.

This heading sensor serves serious cruisers, commercial fishing operations, and weekend boaters who depend on autopilot accuracy and chartplotter reliability. It addresses the core challenge facing modern boat navigation: maintaining trustworthy heading data in the 3D motion environment of the open water, where traditional magnetic heading instruments struggle. The 9-axis architecture eliminates compass deviation issues caused by proximity to metal structures, electrical systems, and metallic hardware—a persistent problem on fiberglass and steel vessels. Whether managing a trawler through rough seas, maintaining course during GPS-denied operations, or integrating heading data into advanced routing systems, the Garmin 9-axis sensor delivers the precision and responsiveness that professional and dedicated recreational boaters require.