Provide accurate heading data to or your autopilot for better tracking or to your radar for radar overlay on compatible chartplotters. Requires the purchase of a NMEA 0183 or NMEA 2000 interface cable.
Product Accessories for Garmin NMEA Marine Heading Sensor

SKU: GAX11418
Garmin NMEA 0183 Cable for Garmin Marine Heading Sensor
Garmin 10 meter NMEA 0183 Cable for Garmin Marine Heading Sensor

SKU: GAX11419
Garmin NMEA 2000 Cable for Garmin Marine Heading Sensor
Garmin 6 meter NMEA 2000 Cable for Garmin Marine Heading Sensor