Furuno LS4100 Fish Finder without Transducer Standard Features
Waterproof, 5 Inch, Silver Bright Monochrome LCD Display
Dual Frequency – 50 and 200 kHz
Targets presented in up to 4 gray tones
Picture resolution of 240(H) x 320(V) pixels
300 Watt RMS (2400 P-P) output power
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
Audible and Visual, Temp, Speed, Fish or Bottom Alarm
TLL output sends position, temp and depth to Furuno TLL capable plotters
Multiple Display Modes 
1. Normal, Low Frequency/High Frequency 
2. Dual Frequency 
3. Bottom Lock Expansion 
4. Marker Zoom 
5. Bottom Zoom 
6. A-Scope 
7. Two Customizable Navigation Data Display – Displaying digital and analog graphical info, including: Wind Speed/Direction, Ship’s Speed, Steering Screens and more
Speed and Temperature input via optional sensor or NMEA data
Mini Navigator allows storage of up to 12 waypoints, with capability to navigate back to these points using the LS4100’s XTE/Range and Bearing calculation and steering screens
Two NMEA0183 ports – one bi-directional and one “listen-only”
Furuno LS4100 Fish Finder without Transducer Shipping Information
4 Lbs., 1 Carton Less Transducer – Single unit
20 Lbs., 1 Carton Less Transducers – 6 units per carton
Furuno LS4100 Fish Finder without Transducer Power Requirements
12 VDC, 6 Watts
Transducer Plug on back of unit
10 pin
Furuno LS4100 Fish Finder without Transducer
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 (2,400 Watt peak-to-peak) 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 refection 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 GPS/WAAS 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.