Navico StructureScan™HD Sonar Stainless Steel Thru-Hull Transducer (Single)

Unlock Crystal-Clear Underwater Views with StructureScan HD Thru-Hull Technology

Imagine gliding across the water at speeds up to 35 mph while your sonar paints a vivid picture of the underwater world—fish hugging structure, bait balls scattering, and bottom contours revealing hidden hotspots. The stainless steel thru-hull transducer for StructureScan HD delivers exactly that, combining SideScan and DownScan Imaging in a rugged, low-profile design built for serious boaters and anglers.

Crafted from durable stainless steel by Airmar exclusively for Navico systems, this single-channel transducer punches through water with dual frequencies at 455 kHz and 800 kHz. It excels at separating bait from game fish, highlighting bottom hardness variations, and spotting wrecks or reefs with stunning detail. Whether you're chasing trophy bass in shallow bays or deep-water species offshore, this setup transforms your display into a fish-finding powerhouse.

Key Performance Specs for Reliable Results

• Scanning Range: Up to 600 feet side-to-side for expansive coverage, 300 feet straight down for precise depth readings.
• Power Output: 500 watts RMS to maintain clarity even in challenging conditions like heavy currents or thermoclines.
• Mounting Flexibility: Optimized for hulls with 8 to 16-degree deadrise; includes a high-speed fairing block for flat or cut installations.
• Cable Management: Generous 30-foot cable length simplifies routing through bulkheads and consoles.
• Speed Tolerance: Fairing block ensures stable performance without signal loss at planing speeds.

These specs aren't just numbers—they mean fewer missed strikes and more time targeting productive water. The 3-channel beam (port, starboard SideScan plus DownScan) provides a 180-degree panoramic view, far surpassing traditional 2D sonar.

Installation Insights for Seamless Integration

Mounting a thru-hull transducer demands precision to avoid turbulence and air entrainment. Position it forward of props and rudders, ensuring a clean water flow path. The included fairing aligns the unit parallel to the waterline, critical for hulls in the supported deadrise range. For deeper V-hulls exceeding 24 degrees, consider pairing with a dedicated port/starboard setup to maintain beam integrity—no Y-cables here, as they can compromise performance on steeper angles.

Pro tip: Sand the hull surface smooth before bedding with marine sealant, and torque the nut to spec for a watertight seal. Pair it with Lowrance HDS or elite series units running LSS-2 modules for plug-and-play compatibility and software-enhanced imaging.

Why Anglers Swear by This Transducer for Structure Hunting

SideScan reveals fish-holding cover like submerged trees or rock piles from afar, while DownScan layers photo-like detail over your chartplotter. Spot schools evading your lure in real-time, or navigate rocky bottoms without grounding. At boat speeds, the stabilized beam keeps images sharp, letting you cover more ground without sacrificing quality.

Durban anglers report doubling their catch rates on wrecks, while Great Lakes trollers use it to ID baitfish depths instantly. It's not just sonar; it's your competitive edge on the water.

Real-World Applications Across Boat Types

From center consoles pounding offshore waves to bass boats skimming shallows, this transducer adapts. Its corrosion-resistant stainless construction laughs off saltwater exposure, and the low-drag profile won't slow you down. Backed by a manufacturer's commitment to quality, it delivers season after season of reliable service.