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The Humminbird 581i Combo features an ultra-high resolution, 16 level grayscale 640V x
320H 5" display, DualBeam PLUS sonar with 2000 Watts PTP power output, and GPS
Chartplotting with built-in UniMap.
Display
5.0" diagonal
640V x 320H
FSTN LCD
Cartography
Navionics Compatible
Memory
Waypoints: 3,000
Routes: 50
Tracks: 50 w/20,000 points each
Sonar
DualBeam PLUS
200 kHz / 20° @ -10db
83 kHz / 60° @ -10db
Depth: 800 ft.
Power Output
250 Watts (RMS)
2000 Watts (Peak-to-Peak)
GPS Features
50 Channel GPS
Trackplotting
Chartplotting
GPS Speed
Humminbird UniMap
Warranty
One Year
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
- Wide Narrow Cone Split Screen
USER-FRIENDLY TECHNOLOGY
- Custom Digital Readout Selection
- Custom View Selections
- Large Digits View
- Quick Disconnect Mounting System
- Triplog
- X Press Menu System
Specifications:
| Display Size: |
5.0" diagonal |
| Display Pixel Matrix: |
640V x 320H |
| Display Type: |
FSTN LCD |
| Display Colors/Grayscale: |
16 Level Grayscale |
| DualBeam PLUS |
| Sonar
Coverage |
200 kHz / 20° @ -10db
83 kHz / 60° @ -10db |
| Target Separation: |
2.5 inches |
| Power Output (RMS): |
250 Watts (RMS) |
| Power Output (Peak to
Peak): |
2000 Watts (Peak-to-Peak) |
| Temperature: |
Included |
| Speed: |
GPS Speed Included |
| Backlight: |
Yes |
| Waterproof: |
Yes |
| Mount: |
Quick Disconnect |
| Unit
Size: |
7" H x 7" W x 4" D |
| Transducer - Standard: |
XNT-9-20-T |
| Transducer Mounting: |
Inside Hull or Transom |
| Power Input: |
10-20 VDC |
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Boatersland Fishing > Fishfinders > Humminbird > Humminbird 500 Series Fishfinders > Humminbird Fishfinder 581i Fishfinder/GPS Combo
