The 917c Combo features high performance DualBeam PLUS sonar and GPS Chartplotting with an ultra wide, high resolution 7" color display for big picture views of the bottom and no compromise split screens viewing. DualBeam PLUS™ sonar has a narrowly focused center beam, surrounded by a second beam of 60º, expanding your coverage to an area equal to your depth - in 20 feet of water the wider beam covers an area 20 feet wide. The first beam is focused on the bottom, to show you structure, weeds and cover. The second beam is hunting for fish in the wide coverage area. You can use the beams independently, yet working together they give you a clearer picture of what's going on underneath the boat. Single Beam sonar is optimized to give you a detailed view. The single beam has a narrowly focused beam to depicit the bottom, structure and weeds and cover where fish congregate.
Note: International (Metric) & Domestic (Feet) Units: Units purchased in the United States or Canada (this website) can not be converted from feet to meters by the factory nor by the local authorized international distributor. Metric units are only available through authorized international distributors listed in your Country. Products purchased from this website must be returned to the United States or Canada as specified above for warranty service.
See Hummingbird Fish Finder 917c GPS Combo Features & Specifications