581i - Internal GPS Combo
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The Humminbird 581i Combo features an ultra-high resolution, 16 level grayscale 640V x 320H 5" display, DualBeam sonar with 2000 Watts PTP power output, and GPS Chartplotting with built-in UniMap.
Overview
| Display |
- 5.0" diagonal
- 640V x 320H
- FSTN LCD
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| Cartography |
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| Memory |
- Waypoints: 3,000
- Routes: 50
- Tracks: 50 w/20,000 points each
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| Sonar DualBeam |
- 200 kHz / 20° @ -10db
- 83 kHz / 60° @ -10db
- Depth: 800 ft.
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| Power Output |
- 250 Watts (RMS)
- 2000 Watts (Peak-to-Peak)
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| GPS Features |
- 50 Channel GPS
- Trackplotting
- Chartplotting
- GPS Speed
- Humminbird UniMap
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| Warranty |
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581i Specifications
| Display Size | 5.0" diagonal |
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| Display Pixel Matrix | 640V x 320H |
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| Display Type | FSTN LCD |
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| Display Colors/Grayscale | 16 Level Grayscale |
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| DualBeam Sonar Coverage |
- 200 kHz / 20° @ -10db
- 83 kHz / 60° @ -10db
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| Target Separation | 2.5 inches |
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| Power Output (RMS) | 250 Watts (RMS) |
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| Power Output (Peak to Peak) | 2000 Watts (Peak-to-Peak) |
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| Temperature | Included |
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| Speed | GPS Speed Included |
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| Backlight | Yes |
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| Waterproof | Yes |
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| Mount | Quick Disconnect |
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| Unit Size | 7" H x 7" W x 4" D |
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| Transducer - Standard | XNT-9-20-T |
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| Transducer Mounting | Inside Hull or Transom |
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| Power Input | 10-20 VDC |
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Advanced Sonar Features
- Freeze Frame with ability to Mark Structure on Sonar
- Real Time Sonar RTS Window
- Selective Fish ID
- Sonar Echo Enhancement
- Split Screen Zoom
User-Friendly Technology
- Custom Digital Readout Selection
- Custom View Selections
- Large Digits View
- Quick Disconnect Mounting System
- Triplog
- X Press Menu System
