Discover Superior Sonar Performance Without Drilling Your Hull

Imagine capturing crystal-clear underwater images while keeping your boat's hull pristine and sleek. The Furuno M260 in-hull transducer delivers that exact balance, blending high-power sonar capabilities with a hassle-free installation. Perfect for avid anglers and recreational boaters who prioritize performance without permanent modifications, this 1kW unit excels in solid fiberglass hulls, transmitting signals effectively through the structure for reliable fish detection and bottom tracking.

Dual-frequency operation at 50 kHz and 200 kHz provides versatility: the wider 19-degree beam at 50 kHz scans large areas for deep-water species, while the narrower 6-degree beam at 200 kHz offers pinpoint detail for structure and baitfish schools. With a depth capability reaching up to 2500 feet, it's built for serious offshore adventures, maintaining sharp returns even at speeds over 30 knots.

Key Advantages of In-Hull Mounting

Unlike thru-hull options that demand hull penetration, in-hull transducers like the M260 sit securely inside a custom tank filled with mineral oil or propylene glycol. This setup minimizes drag, preserves warranty integrity, and avoids potential leak risks. Bow-stern or port-starboard orientation flexibility ensures optimal signal paths regardless of hull shape, making it adaptable to various vessel designs from center consoles to cruisers.

• Zero Hull Alterations: Adhesive mounting keeps exteriors smooth and hydrodynamic.
• High-Speed Tracking: Stable performance at planing speeds for dynamic fishing scenarios.
• Broadband Ceramics: Enhanced resolution and sensitivity across frequencies for lifelike sonar displays.

Unlocking Peak Performance on the Water

Crafted with Airmar's advanced broadband technology, this transducer powers up to 1000 watts, interfacing seamlessly with compatible echosounders. The seven-element 50 kHz array pairs with a high-resolution 200 kHz element, delivering detailed separation of targets—even in murky coastal waters. Boaters report exceptional bottom hardness discrimination, aiding in locating reefs, wrecks, and drop-offs with ease.

For trailerable boats, the 32.8-foot cable length offers ample reach, and the bare wire design allows custom integration into your existing wiring harness. It's a game-changer for multihull setups or vessels where external mounts aren't feasible, providing thru-hull-like clarity from within.

Effortless Installation and Long-Term Reliability

Setup starts with selecting a flat interior hull section, free from core materials or engines. The included kit features an innovative tank that couples the transducer acoustically to the hull, ensuring maximum energy transfer. Fill with the recommended fluid, secure with adhesive, and connect—often in under an hour for DIY enthusiasts.

Pro tips for best results: Fair the tank surface to match hull curvature, avoid air pockets during filling, and position away from strakes or thru-hulls that could cause interference. Regular checks on fluid levels and cable connections keep it performing flawlessly season after season, backed by robust construction that withstands vibration and temperature swings.

"Switched to in-hull after a thru-hull snag—night-and-day difference in ease and image quality. Tracks wrecks perfectly at 25 knots."

—Seasoned offshore angler

Enhance Your Fishing Experience

Whether chasing trophy tuna in deep blue or scouting shallows for flounder, the M260 elevates situational awareness. Its Transducer ID feature simplifies display setup on modern units, while the diplexer-free bare wire suits dedicated dual-channel systems. Pair it with CHIRP-enabled sounders for even finer target resolution, turning guesswork into precision strikes.

Beyond fishing, cruisers benefit from reliable depth and obstacle avoidance, making it a smart upgrade for safer navigation in unfamiliar anchorages.