Furuno DFF-3D Multi Beam Digital Network Sounder

Furuno DFF3D Multi Beam Sonar - 3D Fish Finder System (Australia)

If you’re serious about offshore fishing, the Furuno DFF3D is next level. This isn’t just a sounder - it’s a full 3D sonar system that shows fish and structure out to the sides, not just under the boat.

Pair the DFF3D with the right Furuno transducer setup to get maximum performance offshore.

• ✔ Supply & Install Packages Available
• ✔ Real Advice from Experienced Techs (not just box sales)

Why the Furuno DFF3D Is a Game Changer

The DFF3D turns your Furuno system into a wide-angle 3D sonar setup, letting you see fish movement and structure across a massive area in real time.

• 120° port-to-starboard sonar coverage
• Track fish direction and movement
• Locate bait schools before they pass under the boat
• Visualise reef edges, ledges and drop-offs

Who This System Is For

• Offshore and game fishing boats chasing pelagics
• Serious anglers wanting wide-area fish detection
• Boaties upgrading from traditional sounders
• Skippers targeting reef, bait and structure zones

Real Performance on the Water

The DFF3D delivers wide and deep coverage in a way traditional sounders simply can’t match.

• Up to 120° scanning coverage across the water column
• Side scanning out to approx. 200m either side
• Depth penetration to around 300m below the boat

This means you find fish faster, understand movement better, and spend less time guessing.

Installation & Setup (Where Most Get It Wrong)

• Correct transducer selection and placement
• Integration with Furuno NavNet systems
• Clean power supply setup to reduce interference

DFF3D vs Traditional Sounders

Standard sounders show what’s under you. The DFF3D shows what’s happening around you.

• Left, right and down scanning at the same time
• 3D seabed and fish tracking
• Much wider search area offshore

Compatible Systems

• Furuno NavNet TZtouch / TZtouch2 / TZtouch3
• TIMEZERO compatibility
• Supports advanced mapping features

Real-World Use

• Find bait schools before they reach your boat
• Identify reef edges and drop-offs clearly
• Track fish movement during a drift
• Dial in your fishing strategy faster

Furuno DFF3D FAQs

What makes the DFF3D different?
It scans left, right and below - giving you a full 3D view instead of just what’s under the boat.

Is it worth it for offshore fishing?
Absolutely - especially for locating bait, structure and fish movement.

Can this be installed on any boat?
Most boats can be fitted, but setup depends on hull type and layout.

Do I need a Furuno display?
Yes - it integrates with NavNet systems.

Not sure if the DFF3D is right for your setup?

Get a Custom Recommendation

Get the Right Setup for Your Boat

This isn’t a plug-and-play unit - getting it right makes all the difference.

Get the Right Setup for Your Boat

The Furuno DFF3D is a serious bit of kit - and getting the install right makes all the difference.