Humminbird 409950-1 Helix 9 SI 480x800 Sonar with Dual Beam GPS, 9" N/A Made in the USA or Imported Display size - diagonal: 9 inch , display Pixel Matrix:480V x 800H Sonar Standard: side imaging/down imaging/dual beam plus Power output a to a: 4000 Watts Target separation: 2.5 inch Gps speed included