Garmin Fishfinder 400C

Garmin Fishfinder 400C

Availability: DISCONTINUED
Product Code: 010-00510-03



Colour sonar excluding transducer.


  • Colour sonar option suitable for freshwater and seawater fish finding
  • Dual beam and dual frequency transducer options
  • Package does NOT include a transducer
  • Features Ultrascroll™ for fast screen updates
  • See-Thru® technology separates fish from thermoclines and structures
  • Bright, sunlight-readable 4" 256 colour QVGA colour display
  • Maximum depth: 900 feet (dual beam); 1,500 feet (dual frequency)
  • 240 X 320 pixel display
  • 400 watts (RMS) 3,200 watts (peak to peak) power (dual beam)
  • 500 watts (RMS) 4,000 watts (peak to peak) power (dual frequency)
  • Auto Gain with Dynacolor® which adjusts sonar sensitivity automatically
  • A-scope round flasher display mode
  • Frequency: 80/200 kHz; Cone angle (45°/15°), dual beam
  • Frequency: 50/200 kHz; Cone angle (45°/10°), dual frequency
  • Interface Inputs/Outputs: NMEA, CANet® compatible (for sharing sonar information with chartplotters)
  • Size: 14.5 x 12.7 x 7.4 cm

Product Screen Shots

    garmin Fishfinder 400C   garmin Fishfinder 400C   garmin Fishfinder 400C  

Package Includes

  • Fishfinder 400C
  • Protective cover
  • Single knob tilt mount
  • 6' Power cable
  • Owner manual

Package Details

The Fishfinder 400C is a versatile colour sounder suitable for both freshwater or seawater fish finding.

If you need accessories for the Fishfinder 400C please call us on 01-293 6987.

Technical Details

Physical & Performance:

Unit dimensions, WxHxD: 14.5 x 12.7 x 7.4 cm (5.7" x 5.0" x 2.9")
Display size, WxH: 6.5 x 8.5 cm (2.6" x 3.3")
Display resolution, WxH: 240 x 320 pixels
Display type: QVGA
Weight: 499 g (17.6 oz.)
Waterproof: yes (IPX7)


CANet® compatible: yes
Audible alarms: yes
Dual-frequency sonar capable: yes (optional)
Dual-beam sonar capable : yes (optional)
Split-screen zoom: yes
Ultrascroll™ (displays fish targets at higher boat speeds): yes
See-thru® technology (exposes fish hidden in cover): yes
Fish Symbol ID (helps identify fish targets): yes
AutoGain Technology (minimizes clutter, maximizes targets): yes
Whiteline (indicates hard or soft bottom): yes
Adjustable depth line (measures depth of underwater objects): yes
A-scope (real time display of fish passing through transducer beam): yes
Bottom lock (shows return from the bottom up): yes
Water temperature log and graph: yes
Water temperature sensor included: no
Water speed capable (displays speed on water): yes


Frequency: 50/200 kHz (dual frequency), 80/200 kHz (dual beam)
Transmit power: Dual Frequency: 500 Watts (RMS), 4,000 Watts (peak to peak); Dual Beam, 400 Watts (RMS), 3,200 Watts (peak to peak)
Voltage range: 10-35 VDC
Maximum depth: 1,500 ft (dual frequency), 900 ft (dual beam)
Cone angle: 45º/10º (dual frequency), 45º/15º (dual beam)