Humminbird's premium push-button driven combo includes Side Imaging, CHIRP Digital Sonar and traditional DualBeam PLUS sonar.The HELIX 5 CHIRP SI GPS G2 features a brilliant 5" diagonal display with LED backlight, CHIRP Side Imaging and 2D sonar. Includes GPS chartplotting, built-in Bluetooth, Ethernet networking capabilities, AutoChart Live with depth, vegetation and bottom hardness mapping.Key FeaturesSide Imaging Sonar: Gain a 180 side to side perspective on the world below the surfaceUniMap Cartography: The Humminbird UniMap is a built-in map covering the contiguous US coastline, inland lakes and rivers at 30 meters per pixel resolution.SmartStrike takes you straight to the action by showing you where the fish are biting at any given moment.Autochart Live: Make a map where there is no map. Our patent pending AutoChart Live allows you to create digital, detailed maps live and on the water. You can also use it to enhance your existing chartsSpecificationsDisplay Type: Color TFT, LED backlitScreen Size: 5" diagonalScreen Resolution:800 x 480Included Cartography: UniMapOptional Cartography: Navionics (NAV+ Platinum+), Humminbird MappingData Interface: NMEA 2000 (optional), i-Pilot Link (optional), NMEA 0183Receiver Type: Internal 10Hz GPSSonar: SideImaging, CHIRP Digital Sonar, DualBeam PLUSTransmit Power: 500W (RMS)Frequency: 83/200/455kHzBeamwidth: 16, 28, 45 and 75Max. Depth:1,500'Transducers: XNT 9 SI 180 T Transom mount includedDimensions: 79/16"W x 4 5/8"H x 3 5/16"DVoltage: 10.8-20V DCAmperage:615mAExternal Storage: Optional 5 Port Expansion ModuleWaypoints, Routes, Tracks, Points: 2,750, 47, 50/20,000Waterproof Rating: IPX7