Garmin's 9-Axis Heading Sensor is a fast, 10Hz premium solution for ensuring heading accuracy.Accurate heading even at low speed: Its heading output at 10Hz and accuracy of plus or minus two degrees ensures your chart orientation and boat heading line match up with reality, even at lower speeds. It also allows for MARPA tracking and improves radar overlay experience.Effective in rough waters: You can also be confident your heading information will remain accurate, even in rough sea conditions where your bow is pitching and rolling or — in sailboat applications — when heeled over. Provides heading and rate-of-turn output at 10Hz and trim and heel output at 1Hz.Easy installation, fast calibration: The 9-axis heading sensor installs easily with NMEA 2000 plug-and-play interface and a simple two-step precision calibration process for compatible Garmin chartplotters. For displays other than Garmin, basic calibration is also supported.Install in any orientation: The heading sensors 9-axis MEMS technology allows installation in any orientation located away from magnetic interference. It is also built to withstand bilge environments.Key FeaturesProvides exceptional heading accuracy, even at lower speeds or when bow is pitching, rolling or heeling overHeading accuracy of plus or minus 2 degreesHeading and rate-of-turn output at 10Hz; trim and heel output at 1HzSimple 2-step calibration process9-axis MEMS technology allows installation in any orientation located away from magnetic interferenceWhat's in the Box9-axis Heading SensorNMEA 2000 T-connectorNMEA 2000 drop cable (2 meters)DocumentationInstallation Instructions