Furuno DFF1UHD+ TruEcho CHIRP Fishfinder w/Side-Scan Black Box Sounder

The Furuno DFF1-UHD+ is a black-box TruEcho CHIRP fishfinder with CHIRP Side-Scan for NavNet TZtouch systems. It provides 1kW output and three frequency bands from low through high, making it a useful sounder module for offshore fishing boats and cruisers that already use a Furuno network. It is not a display or transducer package, so both the screen and sensor are separate.

The low, medium, and high ranges cover 25-210kHz, allowing the transducer choice to match shallow structure work or deeper fishing. Side-Scan reaches up to 750 feet on each side, giving 1500 feet of total listed coverage when the transducer and conditions support it. The 10/100 Ethernet port connects to NavNet TZtouch 2, TZtouch 3, or TZtouch XL systems. Plan the DFF1-UHD+ together with the display, transducer, network, and power supply.

Key Features

- TruEcho CHIRP and CHIRP Side-Scan – Combines conventional sounder work with side-looking structure coverage.
- 1kW output – Provides high-power sonar capability with a compatible transducer.
- 25-60kHz low, 85-145kHz medium, and 130-210kHz high ranges – Gives frequency flexibility for different depths.
- Up to 750 feet per side – Provides the stated Side-Scan coverage.
- Ethernet network connection – Links the module to compatible NavNet TZtouch displays.

Who Is This For?

This Furuno CHIRP Side-Scan sounder module suits offshore fishing boats, charter vessels, and NavNet TZtouch owners who want more sonar capability. It is not ideal for buyers without a compatible NavNet display or transducer, because the DFF1-UHD+ is a black-box module rather than a complete fishfinder.

Compatibility

Confirmed compatibility includes NavNet TZtouch 2, TZtouch 3, and TZtouch XL systems through one 10/100 Ethernet port. The supplied information does not identify specific transducer models, NMEA 2000, NMEA 0183, radar, autopilot, Garmin, or Lowrance compatibility. No named incompatible system was provided; verify the NavNet software, transducer, and network requirements before installation.

Technical Specifications

- Brand: Furuno
- Model: DFF1-UHD+, Black Box
- Technology: TruEcho CHIRP and CHIRP Side-Scan
- Output: 1kW
- Frequency: Low 25-60kHz, medium 85-145kHz, high 130-210kHz
- Side-Scan: Up to 750 feet per side
- Compatibility: NavNet TZtouch 2, TZtouch 3, TZtouch XL
- Networking: One 10/100 Base-T Ethernet
- Display: External compatible NavNet display required
- Warranty: 2-year standard warranty

Warranty & Support

Furuno provides a 2-year standard warranty. The supplied specifications do not state warranty exclusions or service procedures.

The DFF1-UHD+ is a strong choice when a NavNet TZtouch system needs CHIRP and Side-Scan without replacing the main display. Its trade-off is the installation scope: the black box, compatible transducer, Ethernet connection, and display all need to be planned together. Choose it for a Furuno networked fishfinder system, not a standalone sounder.