Upgrade your marine sonar setup with the Furuno 556TID-HDD SS260, a powerhouse stainless steel thru-hull transducer designed for serious anglers and boaters who demand crystal-clear underwater visuals. Crafted for vessels pushing through waves at speed, this 1,000-watt beast combines dual-frequency precision (50/200 kHz) with a built-in temperature sensor and high-speed fairing block, delivering unmatched detail on fish arches, wrecks, and bottom contours—even in depths up to 2,500 feet.
What sets the SS260 apart isn't just its specs; it's the real-world edge it gives you on the water. Imagine separating bait schools from structure in choppy conditions or tracking bottom-hugging species along drop-offs without the fuzzy images common in lesser transducers. Its narrow 20°/6° beamwidth sharpens focus where it counts, making it a go-to for offshore trolling, reef hunting, and coastal exploration.
Standout Features That Drive Superior Performance
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Robust Stainless Steel Housing: Built to withstand harsh saltwater environments, resisting corrosion and impacts better than plastic alternatives for years of reliable service.
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Dual 50/200 kHz Frequencies with Diplexer: Seamlessly switches between wide-area scanning at 50 kHz for deep water and high-resolution 200 kHz for shallow details, all through a single cable.
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Integrated Temperature Sensor: Provides accurate water temp readings to help predict fish behavior and locate thermoclines.
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High-Speed Fairing Block: Minimizes drag and cavitation at planing speeds up to 30+ knots, ensuring stable pings without dead zones.
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10-Pin Connector and 32.8-Foot Cable: Plug-and-play compatibility with Furuno sounders, offering flexibility in routing through tight bilge spaces.
Pro Tips for Flawless Thru-Hull Installation
Mounting the SS260 is straightforward but rewards careful prep. Select a flat hull section forward of the prop, at least 1/3 the waterline length from the bow. Drill a 3-inch hole, bed the transducer in marine sealant, and secure with the included nut—torque to 25 ft-lbs for a watertight seal.
Align the kick-up stem dead ahead (0°) for optimal beam projection. The fairing block streamlines flow; sand it to match your hull deadrise (up to 25°). Route the 32-foot cable away from engines and fluorescents to dodge interference. Post-install, calibrate keel offset and temp in your sounder menu for spot-on readings.
Pro Tip: In cold climates, fair the block slightly upward to avoid ice entrapment. Always test at dockside with a depth finder app before heading out.
Longevity Secrets: Keeping Your SS260 in Prime Condition
This stainless steel workhorse thrives with minimal upkeep. After each trip, rinse with fresh water to flush salt crystals. Inspect the face for marine growth—mild abrasives like Scotch-Brite work wonders without scratching. Annually, check cable strain relief and O-rings for cracks.
Avoid antifouling paints on the active face to prevent signal damping. If bubbles appear in readings, verify hull seal integrity. With proper care, expect a decade of top-tier performance, outlasting many competitors.
Frequently Asked Questions
What frequencies does the Furuno 556TID-HDD SS260 support?
It operates at dual 50/200 kHz frequencies with a built-in diplexer, allowing wide-area deep scans and high-res shallow details through one connection.
What is the maximum depth capability of this transducer?
Rated for reliable performance up to 2,500 feet, making it excellent for offshore bluewater applications.
Does the SS260 include a temperature sensor?
Yes, it features an integrated temperature sensor for real-time water temp data, crucial for locating baitfish and thermoclines.
What beam angles does it provide?
20° at 50 kHz for broad coverage and 6° at 200 kHz for pinpoint resolution on targets.
Is a fairing block included, and what does it do?
Yes, a high-speed fairing block is included to reduce drag and prevent aeration at planing speeds, ensuring consistent sonar returns.
What type of hulls is this transducer best for?
Thru-hull mount suits fiberglass, wood, or metal hulls with deadrise up to 25°, especially on planing boats over 30 feet.
How long is the cable on the Furuno 556TID-HDD?
It comes with a 32.8-foot cable, providing ample length for clean routing to your display unit.
For over 70 years, Furuno has been continuously imagining and creating new solutions, making new marine electronic equipment with the goal of offering both performance and simplicity for everyone. Not only for men and women who make a living on the seas, but also for those who simply want to enjoy the boating lifestyle. For them, Furuno has become synonymous with quality, performance and reliability.
The SS260 is our best performing, stainless-steel, thru-hull stem for 1 kW echosounders. Its construction utilizes separate 50 kHz and 200 kHz elements for unparalleled deep-water performance and unmatched bottom and water-column detail. The SS260’s narrow beam gives crisp image detail especially suited for fishing shelves, intricate bottom structures, and wrecks.
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