Perkins Marine

When your boat doesn't have room for a giant fishfinder, why not go small? The Humminbird 365ci Combo features a 3.5-inch 256-color display, DualBeam sonar with 2400 Watts PTP power output, and GPS Chartplotting with built-in UniMap.

The Humminbird 365ci Combo features a 3.5-inch 256-color display, DualBeam sonar with 2400 Watts PTP power output, and GPS Chartplotting with built-in UniMap.

A Big Little Fishfinder.

DualBeam Plus

Get the best of both worlds, with selectable narrow and wide beams you can view individually, or melded into one display. A precision 20° beam provides high accuracy returns of fish, structure, and bottom profile. The wider 60° beam provides greater coverage for fish and bait fish. You can view the two beams separately, side by side, or blended together for the most complete picture.

Switchfire Sonar

When you hit the water, you don't limit yourself to one bait. So why limit your sonar? Exclusive Humminbird SwitchFire Sonar gives you the power to choose how returns are displayed. With two unique modes, you have complete control to adjust with the fishing conditions, making our down-looking sonar an even more valuable fishfinding tool.

Split Screen Zoom

Split Screen Zoom increases the displayed resolution to separate sonar returns that are very close together. In this view, the display is split to show a narrow slice of the full range view on the right and the zoomed view on the left. The zoom preview box on the right tracks the bottom in the full range view.

Instant Image Update

As the boat moves through the water, the sonar chart updates in real time to show the latest information on the sonar screen. A real time sonar (RTS) window shown on the right side of the display always updates at the fastest rate possible for depth conditions.

The included UniMap covers the continental U.S. coastline, inland lakes, and rivers at 30 meters per pixel resolution.

Split Screen Zoom increases the displayed resolution to separate sonar returns that are very close together.

Freeze Frame/Structure Marking

Pressing any arrow on the four-way cursor control instantly stops the sonar graphic display to allow a closer inspection of submerged structure, bait fish, and underwater contours. Movable cursor feature allows you to instantly discern depth of any sonar return and mark waypoints from the sonar screen for navigation. Pressing the EXIT key will exit the freeze frame and the display will start to resume scrolling. Mark the location of fish-attracting structure, bottom transitions, or any feature anywhere on traditional sonar with the Sonar Cursor.

Selective Fish ID+

Fish ID+ uses advanced sonar processing to interpret sonar returns, and displays a Fish Symbol when very selective requirements are met. When a fish is detected, a fish icon and its depth are displayed above the return that has been classified as being a fish. Three different fish icons represent intensity of the sonar return, and provide an indicator of relative fish size.

Real Time Sonar (RTS) Window

A Real Time Sonar (RTS) Window appears on the right side of the display in the Sonar View only. The RTS Window always updates at the fastest rate possible and shows only the returns from the bottom, structure, and fish that are within the transducer beam. The RTS window can be displayed as narrow (standard), wide, or off.

TreuArch Technology

Many competitive sonar products commonly use post processing software to "enhance" the arching effect produced when suspended targets enter and leave a sonar beam. This additional processing can slow down performance and exaggerate the information displayed. Humminbird�s TrueArch Technology utilizes parallel processing of sonar data to eliminate unwanted interference and noise and reveal unaltered sonar echoes resulting in true arches of fish targets. This helps anglers more quickly discern the size and depth of fish targets.

Built-In U.S. UniMap

The included UniMap covers the continental U.S. coastline, inland lakes, and rivers at 30 meters per pixel resolution. UniMap gives you an accurate chart almost anywhere you travel in the United States.

What's in the Box

Humminbird 385ci 3.5-Inch Waterproof Marine GPS and Chartplotter with Sounder, Mounting Bracket, Transom Mount Transducer, Installation Hardware/Cables, Owner's Manual