Humminbird XPTH-9-HDSI-180-T Plastic Thru-Hull Transducer

Upgrade your boating experience with a transducer that delivers crystal-clear underwater views, whether you're trolling for trophy fish or mapping out new fishing grounds. This thru-hull design punches through the hull to provide reliable performance at high speeds, capturing every detail below and to the sides of your vessel without the drag of transom-mounted options.

Exceptional Imaging for Serious Anglers

Engineered for Dual and High Definition Side Imaging, this transducer sweeps wide areas with precision. Its multi-frequency capabilities—spanning traditional sonar beams and advanced side/down imaging—reveal structure, baitfish schools, and bottom contours like never before. The built-in temperature sensor adds another layer of insight, helping you track water conditions that influence fish behavior throughout the day.

Beam angles of 20°, 74°, and 84° offer versatility: tight beams for deep water precision, wider sweeps for shallow coverage. Frequencies from 200 kHz up to 800 kHz ensure sharp, noise-free images even in choppy conditions or at planing speeds.

Robust Build for Real-World Demands

• Durable plastic housing: Ideal for fiberglass hulls, resists corrosion and withstands constant water exposure.
• Generous 30-foot cable: Gives you flexibility in routing to your display unit without signal loss.
• Precise dimensions: At 5.95 inches long and 3 inches wide with a 1-inch shaft diameter, it fits most hull thicknesses cleanly.
• Included fairing block: Streamlines water flow over the transducer, minimizing turbulence for optimal high-speed readings.

Why It Stands Out on the Water

Unlike surface-mounted transducers that falter when you push the throttle, this thru-hull model maintains consistent performance up to highway speeds on the water. Anglers report spotting submerged trees, drop-offs, and lurking walleye from afar—details that turn good days into limits. It's not just about seeing more; it's about interpreting the lake bottom like a pro, adjusting your tactics on the fly.

For offshore runs or big-water bass tournaments, the high-definition side imaging paints a photo-like picture up to 100 feet per side, helping you pinpoint wrecks or humps without guesswork. Pair it with your existing sonar setup, and you'll wonder how you fished without it.

Installation Insights from the Field

Getting it mounted right is key to peak performance. Drill a clean hole matching the 1-inch shaft, bed it in marine sealant, and secure with the nut. Angle the fairing block slightly forward to match your hull's deadrise—typically 12-20 degrees for most recreational boats. Pro tip: Test in a bucket of water before the full install to confirm operation. Common pitfalls? Poor cable management leading to interference—zip-tie it away from engines and bilge pumps.

Once in place, calibrate your unit's settings: Boost side imaging gain for cluttered bottoms, dial back in clear water. You'll notice the difference immediately in image clarity and target separation.

Perfect Match for Your Setup

Designed to integrate seamlessly with a range of marine electronics, it shines on units craving high-res imaging. Whether upgrading from basic 2D sonar or fine-tuning a tournament rig, this transducer elevates your entire system. It's built for boats from 16-foot bass skiffs to 30-foot cruisers, handling the rigors of freshwater tournaments or coastal adventures.

Ready to see what's really down there? This transducer transforms your sonar into a window on the underwater world, giving you the edge every time you hit the water.