Humminbird Fishfinder 581i HD DI Combo

SKU #: HUM4089901 | Part #: 408990-1
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  • Includes All Manufacturers Supplied Accessories.
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Humminbird Fishfinder 581i HD DI Combo

581i HD DI Combo

Combine pristine picture quality with features usually found in higher-end models, including Side Imaging® and color or monochrome displays. Versatility makes the 500 Series™ perfect for a wide range of boats..

It doesn't matter what you're fishing for-any Humminbird® fishfinder will help you see your prey and its surroundings more clearly. To find the Humminbird that's right for you, consider your boat type, fishing style, price range and the features you can or can't live without. Use the chart below to select the Series that best meets your needs.

Display Size:
5" Diagonal
640V x 320H
Display Type:
Sonar - Standard:
Dual Beam PLUS™
Sonar Coverage:
16°, 28°,45° & 75° @ -10db
Sonar Frequency:
Target Seperation:
Power Output (Max):
-300W (RMS)
-2400W (PTP)

Depth Capability:
GPS Speed Included
Quick Disconnect
Power Input:

Other Features Include:
  • SwitchFire Sonar
  • HumminbirdPC
  • Upgradeable Internal Software
  • Split Screen Zoom
  • Split Screen Bottom Lock
  • 3D Chart View
  • Large Digits View
  • Wide/Narrow Cone Split Screen
  • Custom View Selections
  • Custom Digital Readout Selections
  • Selectable Display Colors
  • Instant Image Update
  • Selective Fish ID+
  • Real Time Sonar
  • Sonar Echo Enhancement
  • Triplog
  • X-Press. Menu System
Product Questions and Answers

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