Garmin GPSMap 192C 5-Inch Marine GPS and Chartplotter (Internal Antenna) GPS Chartplotter with Built-in Marine BlueChart Compatible with GSD 20 Black Box Sounder Internal Quad-Helix GPS Antenna 5" 16-Color TFT Sunlight Readable Display 1.00lbs (LxWxH) 6.30"x 2.60"x 6.20"