Regular price $5,213.04 Sale price $7,991.30

Network Multi Beam 3D Sonar with Sidescan

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Visibly see the landscape and fish schools at great depths in amazing detail

With the DFF3D you can turn your NavNet TZtouch, TZtouch2 and now TZTouch MFD into a multi beam sonar that can see 120-degrees port to starboard, allowing you to see the depth and direction fish schools are moving, while displaying the seabed condition in real time.


Game changing New Feature

PBG (Personal Bathymetric Generator) Shaded Relief Maps Made With DFF3D Multi-Beam Sonar. Create your own High-Resolution PBG Shaded Relief Charts anywhere and everywhere you go using a TZTouch3 MFD (must have v 2.01 software) and the DFF3D. 

 The area shown above is over 250 football fields of area and was mapped in 22 minutes at 6 knots. 


Multi-beam sonar for deep and wide water columns

Furuno’s DFF3D takes 3D Fish Finding to new depths. Main beam penetration directly under the boat is approximately 300m, with Side Scanning up to 200m. See fish and bottom structure as you’ve never seen them before, at depths previously unfathomable.

Easily see where to drop lines

When you find fish, you can quickly drop a mark on your Chart Plotter for a return drift. Then looking at the DFF-3D’s Cross Section and Side Scan Modes (right side of the screen), you can easily determine which side of the boat the fish are on, how deep they are, and how far out from the boat they are swimming. 

Customise the display according to your needs

Depending on the situation and preference, a combination of screen modes can be displayed.

Cross Section Mode

Displays real-time sea column echo in 120 degrees port-to-starboard. This mode instantly aids in understanding the distribution of bait fish and the water column condition.

Intuitive 3D Sounder History 

The 3D sounder history provides an intuitive and easy to understand 3D image of the seafloor, along with fish school icons. This mode is useful in a variety of situations, such as selecting a fishing hot spot and assessing the seabed condition.

Side Scan

Side scan clearly displays the shape of structure as a high definition image in port and starboard direction.
It is suitable for searching the seabed and understanding the sea floor structure.

This product is compatible with NavNet TZtouch, Navnet TZtouch2, TZtouch3 or Windows OS with TZ professional software. When paired with TZ (TIMEZERO) Professional software and the optional PBG module, the DFF-3D can generate up to 50 depth points per second to quickly create a highly accurate Personal Bathymetric Generated (PBG) database. 


  • Heading is required for PBG overlay onto chart ie SCX20 or PG700

  • Satellite Compass required as the primary source of position, heading and motion (roll/pitch/heave) data.

  • The DFF-3D can detect and generate a PBG database down to 200 m. When the depth is deeper than 200 m, the PBG source can be switched from the DFF-3D (multi-beam) to a Fish Finder (single beam). 

Further details on TIMEZERO website.



The DFF3D demonstrates its excellence by winning the 2017 AND now the 2019 NMEA Technology Award - one of the most prestigious awards in marine electronics.

  • Transmission Frequency: 165 kHz
  • Output Power: 800 W
  • Basic Range: 5-1200 m
  • Detection Range: 200m (side beam) / 300m (main beam directly under)
  • Beam Angle for Triple Beam Sounder: 20°-50° from main beam
  • Display Modes: Cross Section, 3D Sounder History, Triple / Single Beam Sounder, Side Scan
  • Interface: 1x LAN port / 1 KP port (external KP kit required)
  • Waterproofing: IP55
  • Power Supply: 12-24 VDC, 1.4-0.7A

This product is compatible with NavNet TZtouch, Navnet TZtouch2, Navnet TZtouch3 or Windows OS with TZ professional software.



TZT3 Catalogue

TZT3 Catalogue


Operators Manual



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