Humminbird As GRP GPS antenna

Adds incomparable GPS data to GPS-accepting fishfinders. All Humminbird Combo units have a GPS/WAAS receiver built in as standard. 

Compatible with: all HELIX 7 G2N/G3N/G4N models - 8-9-10-12-15 models, all SOLIX models with optional AS GPS NMEA adapter cable , all APEX models with optional AS GPS adapter cable.