Humminbird 581i HD DI Fishfinder Chartplotter Combo

Item # 710693

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Key Features

Best-in-class HD screen resolution
Down Imaging Sonar
DualBeam PLUS with Switchfire
Tilt and Swivel Mounting System

Our Price $299.99

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details & specs

Product Description

The Humminbird 581i HD DI Fishfinder Chartplotter Combo offers best-in-class HD screen resolution with timber, rocks, and even fish taking shape on a 5" crystal-clear monochrome display. Down Imaging Sonar with DualBeam PLUS with Switchfire creates detailed images with high-frequency sound waves emitted in ultra-thin slices. The sonar returns from these waves produce a "snapshot" of what's below your boat and are sensitive enough to track a jig down to 70' and separate fish as close as 2.5" apart. Internal GPS and built-in UniMap let you pinpoint your location, and an SD card slot allows for upgrading to LakeMaster or Navionics cartography. The 581i HD DI Fishfinder Chartplotter feature the convenient Tilt and Swivel Disconnect Mounting System. Measures 7.25"W x 7"H x 4"D.

Humminbird 581i HD DI Fishinder Chartplotter Features

Display
• 5" monochrome FSTN LCD display
• 16-level grayscale
• 640V x 320H resolution

<581i HD DI Advanced Sonar Features
Down Imaging Sonar w/DualBeam PLUS w/Switchfire creates detailed images with high-frequency sound waves emitted in ultra-thin slices. The sonar returns from these waves produce a "snapshot" of what's below your boat.

Down Imaging
• 455kHz/75° @ -10db
• 800kHz/45° @ -10db

DualBeam PLUS
• 200kHz/25° @ -10db
• 455kHz/16° @ -10db

• Depth: 600'/250' (DI)
• Temperature built into transducer
• Comes with Humminbird XNT-9-DI-T Transducer
• Split Screen Zoom
• Split Screen Bottom Lock
• Wide Narrow Cone Split Screen
• Freeze Frame with the ability to Mark Structure on Sonar
• Selective Fish ID+
• Real Time Sonar RTS Window
• Sonar Echo Enhancement
• TrueArch Technology
• Power Output: 300 Watts RMS/2400 Watts Peak-to-Peak

581i HD DI GPS Features
• Trackplotting
• Chartplotting
• GPS Speed
• Built-in Humminbird UniMap

581i HD DI User-Friendly Technology
• 3D Chart View
• Large Digits View
• Custom View Selections
• Custom Digital Readout Selection
• Selectable Display Colors
• Selectable Background Colors
• Triplog
• X-Press™ Menu System

Specifications

Model #	581i HD DI Fishfinder Chartplotter Combo w/Internal GPS
Depth Capability	600'/250' (DI)
Display Matrix	640V x 320H
Display Type	5" mono FSTN LCD
Power Output	300 watts RMS
Operating Freq.	455/800/200/455kHz
Sonar Coverage	75°/45°/28°/16°
Temp	Included
Speed	Included