Humminbird External GPS Heading Sensor

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Humminbird External GPS Heading SensorThis precision NMEA 0183 GPS/WAAS receiver with heading sensor provides fast position fixes accurate within 2.5 meters — more accurate than in dustry-standard GPS. Includes a 20-foot cable and 1"-14 thread stem for mounting. Requires software version 6.570 or higher on compatible Humminbird units. Precision NMEA 0183 GPS/WAAS receiver with heading sensor 2.5-meter position accuracy Dimensions: 3-1/4" diameter, 1-1/2" high Includes 20-foot cable; 1"-14 thread stem mountable (stem sold separately) Compatible with: Apex Series (AS GPS cable required), SOLIX Series (AS GPS NMEA cable required), HELIX 15/12/10/9/8/7 G2N/G3N/G4N Not compatible with Interlink Requires software version 6.570 or higher Show more