Furuno 525ST-PWC Plastic TM Multisensor, 600W (8-Pin)

Discover the reliable performance that keeps boaters coming back to Furuno gear. This multisensor stands out in the world of marine sonar with its versatile design tailored for everyday adventures on the water. Whether you're chasing fish in shallow bays or navigating deeper coastal waters, its dual-frequency setup delivers clear images without the hassle of complex setups.

Why Dual-Frequency Matters for Your Boating Experience

The beauty of operating at both 50 kHz and 200 kHz lies in the flexibility it offers. At lower frequencies, you get wider coverage ideal for spotting schools of fish or structure from afar in deeper waters—perfect for offshore trips. Switch to the higher frequency for sharper details on bottom contours and baitfish closer to the surface, making it a go-to for inshore anglers. This multisensor balances power and precision, ensuring you see more of what's below without constant adjustments.

Transom Mount Simplicity Meets Rugged Durability

Designed specifically for plastic hulls, the transom mount avoids invasive drilling through your boat's hull. The included temperature sensor gives real-time water temp readings, crucial for locating species that chase thermal breaks. Plus, the removable speed paddlewheel lets you track your boat speed accurately through water—essential for trolling at precise speeds or calibrating your GPS. With a sturdy plastic housing, it withstands the slap of waves and exposure to saltwater without corroding quickly, keeping your setup reliable season after season.

Beam Angles: Coverage Tailored to Your Waters

A 45-degree beam at 50 kHz sweeps a broad area, helping you find fish fast in open water. The narrower 12-degree beam at 200 kHz zooms in for high-resolution views, revealing wrecks, drop-offs, and individual fish with stunning clarity. This combination means less guesswork and more successful outings, whether you're a weekend warrior or a dedicated tournament angler.

Installation Insights from Real Boaters

Setting this up is straightforward for most DIY enthusiasts. Position it on the transom where water flow stays consistent, even at planing speeds—typically dead center or slightly off to avoid prop wash interference. The 30-foot cable reaches most helm stations, and the 8-pin connector plugs right into compatible Furuno sounders. Pro tip: Deadrise angle your bracket to keep the face perpendicular to the waterline for optimal readings. Many users report crystal-clear sonar returns right after install, with minimal air bubbles thanks to its streamlined shape.

Performance Across Conditions

In choppy seas, the 600-watt power punches through turbulence for solid bottom tracking. Freshwater anglers love it for bass lakes, where the wide beam excels at covering flats. Saltwater pros appreciate how it handles thermoclines, revealing suspended bait balls that bigger game follows. It's not just about power; the sensor's sensitivity picks up subtle changes, like soft mud versus hard rock bottoms, helping you anchor in the perfect spot.

Long-Term Ownership Tips

To maximize lifespan, rinse with fresh water after every saltwater outing to prevent salt buildup on the speed sensor. Inspect the paddlewheel for marine growth seasonally— a quick clean keeps speed readings accurate. Users often pair it with modern multifunction displays for split-screen views, enhancing situational awareness during navigation or fishing.