Navico TotalScan Thru Hull Transducer Low/Hi Chirp, DownScan, StructureScan HD

Imagine heading out on the water, your boat slicing through waves, and suddenly your fishfinder lights up with crystal-clear images of fish schools, underwater structures, and the lakebed below. That's the power of the TotalScan Thru-Hull Transducer with Low/High CHIRP, DownScan, and StructureScan HD. Designed for serious anglers who demand the best from their marine electronics, this all-in-one sensor mounts seamlessly through your hull, delivering unmatched sonar performance without the clutter of multiple transducers.

Unlock Superior Sonar with All-in-One Technology

This transducer packs everything you need into a single, rugged unit. Forget juggling separate probes for different sonar modes—here, Broadband sonar, advanced CHIRP frequencies, DownScan Imaging, and StructureScan HD all work together from one thru-hull mount. It's built tough for saltwater abuse, with a streamlined design that minimizes drag and maximizes data accuracy even at speed.

• Broadband at 50/200kHz: Traditional sonar for reliable bottom tracking in various depths, perfect for everyday navigation and basic fish detection.
• Low and High CHIRP: Sweeping frequency ranges that paint sharper, more detailed fish arches and bottom contours. Low CHIRP excels in deeper waters (up to hundreds of feet), while High CHIRP shines in shallows for pinpoint precision.
• DownScan Imaging at 455/800kHz: Photo-like views of the bottom, revealing fish hiding in weeds, drop-offs, or brush piles that traditional sonar misses.
• StructureScan HD: Side-imaging magic that scans up to 300 feet to each side, mapping wrecks, reefs, and ledges in stunning detail.
• Water Temperature Sensing: Real-time temp readings to track thermoclines where baitfish—and big game—congregate.

Flexible Thru-Hull Mounting for Real-World Boats

Whether your hull is dead flat or has a gentle deadrise up to 5 degrees, this transducer adapts with a simple fairing block (included or optional depending on setup). Installation is straightforward for most DIY boaters: drill, seal, and wire up to your compatible chartplotter. It thrives on planing hulls, displacement vessels, or offshore rigs, providing consistent performance without air bubbles or interference from the keel.

Pro tip: Position it forward of props and struts for the cleanest water flow, ensuring side-scan reaches its full potential even when trolling for trophy walleye or stripers.

Why Serious Anglers Swear by TotalScan

In the heat of competition or on family outings, split-second decisions win the day. This transducer turns your display into a window underwater, spotting suspended crappie in timber or bass hugging ledges. Pair it with modern multifunction displays, and you'll overlay CHIRP sonar with StructureScan for hybrid views that reveal more fish than ever. It's not just gear—it's your unfair advantage on the water.

Users rave about its sensitivity in murky bays or deep blue offshore, where traditional setups fall short. And since it's from Navico, expect rock-solid reliability backed by marine-grade construction that laughs off corrosion and rough seas.

Seamless Compatibility Across Brands

Engineered by Navico, this transducer plugs right into popular Simrad, Lowrance, and B&G units. From evo-series chartplotters to HDS and elite fishfinders, it unlocks full TotalScan functionality with a single cable. No adapters needed—just pure, plug-and-play sonar bliss.