Humminbird Sonar Helix 5 CHIRP GPS G3 The Helix 5 CHIRP GPS G3 GPS is equipped with a large color display. With a transmitting power of 4000 watts, this depth sounder reaches a depth of up to 360 meters. DualSpectrum CHIRP makes it a true all-round echo sounder, both for shallow water and for greater depths. The integrated Precion GPS antenna and microSD card slot makes the Helix 5 Chip GPS G3 a complete chartplotter. Includes a pre-installed Humminbird Basemap nautical chart. Other features: AutChat Live, Navioncis Plus nautical chart capable.