Stunning performance, amazing range with FSV-25!

Fishing Vessels Workboats

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  • Maximum detection range increased by 30%

    Thanks to recent advancements in low-frequency transducer elements, signal processing and increased transmission power, detection range has been increased by a full 30%*. You can instantly spot and follow schools of fish from several kilometers away.
    *Compared with FSV-24/35. Performance may vary depending on depth, range and signal frequency used.

  • Improved resolution with new signal compression algorithms

    Left image: (150 m range) Schools of tuna and skipjack tuna spotted.
    Right image: (400 m range) Individual bigeye tunas can be seen in this school of fish.
  • Graphical hull-unit indicator

    See exactly how much the transducer is lowered directly on your display with a simple graphical interface. Instantly spot if and how much the transducer is lowered or retracted, helping you avoid accidents and increase the safety at sea.
  • Fully extend the transducer in just 12 seconds for 1200 mm stroke and in 16 seconds for 1600 mm stroke

    A transducer “throw” time of just 12/16 seconds (respectively) places the FSV-25 among one of the fastest hull units available. You can extend and retract the transducer rapidly for smooth operation.
  • Stop function when extending and retracting transducer

    In order to avoid collisions with drift wood and other material, the transducer can be stopped while in motion. The transducer can be lowered to any given length until full extension.
  • Stabilization function for unwavering performance

    The stabilizer ensures that echoes are stable when received, regardless of transducer attitude, counteracting the rolling and pitching motions at sea.
  • Automatically track schools of fish with target lock function

    FSV-25 will automatically lock on schools of fish found and display estimates of distance, depth, speed and angle of movement. Target lock is also available for stationary positions (speed and heading information required).
  • Accurate control with large physical control unit

  • Auto filter for clear and uninterrupted performance

    The auto filter ensures that you get clear and crisp echoes even when travelling at speed. The auto filter is also highly effective against interference from other fishfinder equipped vessels.
  • Wired Remote and Sub Control Unit available

    Sub Control Unit

    Remote Controller (wired)



Basic Range
60 - 5000 m, 18 steps

Power Supply

Processor Unit
12-24 VDC: 8.7-4.4A
Hull Unit
220 VAC: 12 A, 3 phase, 50/60Hz
RU-1746B-2, 100/110/115/220/230VAC, 1 phase, 50/60Hz (Option)


Control Unit (Panel): IPX2, (Chassis): IPX0
Processor Unit, Interface Unit: IPX0
Transceiver Unit, Power Supply Unit, Junction Box: IPX2
Hull Unit: IPX2
Transducer: IPX8


Control Unit: 3.8 kg
Processor Unit: 15 kg
Hull Unit (1200 mm): 1390 kg
Hull Unit (1600 mm): 1440 kg
Transceiver Unit: 138 kg
Interface Unit: 3.4 kg

Equipment List


  • Control Unit (Cable 5/10 m) 1
  • Interface Unit FSV-8502
  • Processor Unit FSV-2503
  • Transceiver Unit FSV-251
  • Power Supply Unit FSV-252
  • Junction Box FSV-2550
  • Hull Unit FSV-253/254
  • Installation Materials 1
  • Spare Parts 1


  • Control Unit FSV-2501
  • Sub Control Unit FSV-853
  • Rectifier Unit RU-1746B-2
  • Remote Controller FSV-2504
  • Installation Materials LAN cable 10/20/30/50/100 m

* Specifications subject to change without notice.