Humminbird 959ci HD DI Chartplotter Fishfinder Combo

Overview Humminbird 959ci HD DI Chartplotter Fishfinder Combo

Humminbird 959ci HD DI Chartplotter Fishfinder Combo is an 8-inch widescreen unit built for users who want chartplotting and detailed below-boat sonar on the same display. The source data identifies Down Imaging, SwitchFire sonar, a 10 Hz internal GPS receiver, and networking support as key parts of the platform.

This model suits anglers who rely on chart and sonar split views while moving between structure, waypoints, and marked routes. With built-in ContourXD mapping, dual SD support, and compatibility with other marine systems through Ethernet and NMEA 2000, it works well as a central fishing and navigation screen.

Key Features

• HD Down Imaging: Helps interpret bottom structure and fish position with more detail than standard 2D-only sonar.
• SwitchFire sonar control: Allows users to adjust how much sonar detail and clutter are shown depending on conditions.
• 10 Hz internal GPS: Improves position updating for smoother chart movement and more accurate trail display.
• 8-inch widescreen layout: Supports chart and sonar combinations in a format suited to split-screen use.
• Ethernet and NMEA 2000 support: Adds room for broader system integration with compatible marine electronics.

Applications

• Chart-driven fishing where route planning and sonar need to stay visible together.
• Reading structure directly beneath the boat while moving across contour changes.
• Helm stations that need a mid-size display with more room than a compact combo unit.
• Users who want waypoint, mapping, and sonar work in one device.

Specifications

What’s Included

• Humminbird 959ci HD DI combo unit
• Transom mount Down Imaging transducer
• Power cable
• Gimbal mounting bracket and knobs
• Unit cover
• Installation hardware and documentation