Furuno LS4100TH Fish Finder
$252.00
Furuno LS4100TH Fish Finder is a dedicated fish finder with a 5-inch Silver Bright Monochrome LCD, Dual Frequency 50 kHz and 200 kHz, and 300W RMS (2,400W Peak-to-Peak). This version includes bronze thru-hull (included) for a ready-to-install package.
Overview Furuno LS4100TH Fish Finder
Furuno LS4100TH Fish Finder is a dedicated marine fish finder for skippers who want clear bottom and target information without moving sonar to a multifunction display. It combines 5-inch Silver Bright Monochrome LCD with Dual Frequency 50 kHz and 200 kHz and 300W RMS (2,400W Peak-to-Peak).
This model suits smaller fishing boats and coastal craft that need straightforward sonar control, readable returns, and dependable depth tracking. Source data includes Bronze Thru-Hull (Included); Up to 3,000 Feet; 12 User Waypoints (Mini Navigator).
Key Features
- Dedicated fishfinder display: 5-inch Silver Bright Monochrome LCD focuses the screen on sonar returns without the clutter of a multifunction interface.
- Dual-frequency operation: Dual Frequency 50 kHz and 200 kHz gives a choice between broader deep-water coverage and finer shallow-water detail.
- Sonar output: 300W RMS (2,400W Peak-to-Peak) supports bottom tracking and target detection for coastal and deeper fishing use.
- Included thru-hull transducer: Bronze Thru-Hull (Included) makes this version suitable for skippers planning a permanent installation.
- Depth range: Up to 3,000 Feet is useful when moving between inshore structure and deeper water.
- Basic navigation support: 12 User Waypoints (Mini Navigator) allows the sounder to keep a small set of marks for repeat spots.
Applications
- Small fishing boats and coastal craft that want a dedicated sounder with straightforward controls.
- Bottom reading over reefs, ledges, wrecks, and changing contours using 50/200 kHz sonar views.
- Installations where a bronze thru-hull transducer is preferred for a permanent sonar setup.
Specifications
| Display Size | 5-inch Silver Bright Monochrome LCD |
| Resolution | 240 x 320 Pixels (High Contrast) |
| Frequency | Dual Frequency 50 kHz and 200 kHz |
| Transducer | Bronze Thru-Hull (Included) |
| Output Power | 300W RMS (2,400W Peak-to-Peak) |
| Max Depth Scale | Up to 3,000 Feet |
| Interface | NMEA 0183 (1x Bi-directional, 1x Listen-only) |
| Waypoints | 12 User Waypoints (Mini Navigator) |
| Waterproof Rating | IPX5 Professional Marine Standards |
| Power Requirements | 12 VDC (6 Watts) |
What’s Included
- Furuno LS4100TH Fish Finder Display Unit
- Bronze Thru-Hull Transducer (Depth/Temp)
- Power Cable Assembly
- Mounting Bracket and Knobs
- Standard Installation Hardware
- Comprehensive Installation and Operation Documentation

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