eBay

Unit works perfect. I just uninstalled from my boat due to upgrading electronics to helix g4n. Included is the head unit with cover, transducer, power cord, mounts with hardware, along with the gps puck.

Humminbird 858C HD Combo:

Vibrant color, wide-screen 480V x 800H 7" Super-Bright LED display with CCFL backlight

DualBeam PLUS sonar

4000 watts PTP power output

GPS Chartplotting

Built-in ContourXD map

Advanced Fishing System capabilities

Includes unit cover

Maximize your angling experience

Dual card slots

Three programmable preset buttons 858c Hd Combo Dual Beam Fishfinder/gps humminbird 409010-1 Display 7" : Unit Dimensions: 11.25" x 6.75" x 4.25" Display Size: 7" Diagonal Display Resolution: 480V x 800H pixels Display Type: 16:9 Color TFT Super Bright LED Transducer: Single/Dual Beam 20/60 Degree 200/83kHz with built in Temperature Fishfinder Features: 65 000 Colors 2.5" Target Separation 1500' Depth Capability 500 Watts RMS 4000 Watts Peak-to-Peak 10-20 VDC Freeze Frame with ability to Mark Structure on Sonar Instant Image Update Real Time Sonar RTS Window Selective Fish ID Sonar Echo Enhancement Sonar Recording Sonar Snapshot Split Screen Zoom TrueArch Technology Wide Narrow Cone Split Screen Optional: WeatherSense CannonLink InterLink NMEA 2000 Navionics Compatability LakeMaster Compatability