5" Mono FF 300W 50/200KHz w/ Trnsm Xdcr

5" Mono FF 300W 50/200KHz w/ Trnsm Xdcr

5" Mono FF 300W 50/200KHz w/ Trnsm Xdcr

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5" Mono FF 300W 50/200KHz w/ Trnsm Xdcr

MFG#: LS4100/TM



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Small and Affordable

Furuno Quality for the Budget Conscious

The LS4100 is a dual frequency fish finder designed for small pleasure craft. It features a waterproof 5” high-definition silver bright LCD screen that offers a remarkably detailed picture of fish and bottom structure. With a resolution of 240 (H) x 320 (V) pixels, it has the highest resolution in its class! The LS4100 offers dual frequency capabilities, both 50 and 200 KHz, and has an outstanding 300 W RMS output power, making this fish finder the leader in its class.


Basic display modes include single Low Frequency or High Frequency, Dual, Bottom-Lock Expansion, Bottom Zoom, A-scope, Marker Zoom and two Nav Data display modes. Choose from a variety of operating modes, including manual or two auto modes, fishing or cruising. The cruising mode uses a higher clutter rejection setting than the fishing mode, making it useful to track the bottom while cruising.


The range can be changed manually or automatically. The LS4100 will redraw the entire echogram so that the contour can be shown seamlessly.


The LS4100 has the unique ability to be a handy navigational organizer when connected to appropriate sensors. It can display a variety of information including: water temperature, wind direction/speed, Lat/Lon, XTE and distance run in a graphical or text format. With the BBWGPS receiver connected, the “Mini-Navigator” feature is capable of storing up to 12 waypoints with a programmable name. Any waypoint can be selected as a destination.

Additional Features:

Seven depth scales, from 0-10 to 0-640 feet

Depth offset to 1,500 feet, maximum depth scale of 3,000 feet

Automatic or Manual Depth Range and Gain Adjustment

A-Scope for rapid fish detection and species identification

White Line Mode for enhanced bottom fish detection

TLL output sends position, temp and depth to Furuno TLL capable plotters

Speed and Temperature input via optional sensor or NMEA data  

Two NMEA0183 ports - one bi-directional and one "listen-only"

In the box:

LS4100 300W 5" Monochrome LCD Sounder

Mounting Bracket & Knobs

White Plastic Front Cover

Powercord/Multi Cable Assy

Installation hardware

525T-PWD Transom Transducer 50/200KHz w/temp

Operator's Manual