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FISH 4100
NAVMAN's new easy-to-use FISH 4100 has one of the largest and highest resolution Black & White screens of any entry-level fishfinder making it the ideal first fishfinder.
Largest Screen Black & White FSTN
3.5 x 2.5" [92mm x 61mm]
High resolution (160 high x 120 wide pixels)
Auto Range, Auto Gain and Bottom Lock
Depth readings to 180m (600ft)
Sonar & History display
Engine hours displayed (0.0 to 99999.9 hours)
Split Screen Zoom Function
Fish, Too Shallow and Too Deep Alarms
White Line for easy bottom identification
3 Fish Symbol Sizes with or without depth of fish
Battery voltage display and Low Battery Alarm
Large Digital readout with bottom trace

Fishfinder Comparison

With Plastic Thru-Hull Transducer

Note: We can only ship Navman units to customers in the US or Canada


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  FISH 4100
Screen Resolution 160 x 120 pixels
Screen Size 110mm diagonal, 92mm (high) x 61mm (wide)
Backlighting 16 levels, Variable Amber
Alarms Too Shallow, Too Deep, Fish detection, Low battery
Alarm Audible buzzer
Keypad Laser etched Silicon Rubber and backlit
Power Consumption 150mA, backlight on
Display Type FSTN, Black and White
Output Power 150W RMS @ 13.8volts
Mounting Quick release bracket with swivel and Tilt
SBN Technology yes
Auto Range & Auto Gain yes
Sonar & History display yes
Split Screen Zoom yes
Bottom Lock yes
Bottom indication White Line
Fish Symbol 3 sizes with or without depth indication
Battery Voltage display yes
Boatspeed with Log no
Water temperature no
NMEA 0183 output no
Engine Hours yes
  Common to all NAVMAN Fishfinders
Transducer & frequency 200 kHz
Depth Range 600' / 180 metres**
Waterproof rating IP67
Supply Voltage 10-16.5v
Memory Non Volatile Memory - stores all settings when fishfinder is turned off.
Operating Temperature 0 to 50;C (32 to 122;F )
Transducer Options Transom and Thru Hull. (Note: Optional 4m (12') ext. cable. Max. cable length to transducer is 15m (50')
Languages English, French, German, Dutch, Swedish, Spanish, Portuguese & Italian.
Options & Accessories
Bulkhead Mount Kit
Protection cover
13ft [4m] extension cable of LT Aquaducer [40644]
Y cable for connection to other transducers
Carry Bag
Note: Supplied standard without protection cover and bulkhead mounting kit.