AIRMAR B45 XSONIC Bronze Thru-Hull 50/200 kHz Transducer for Small Planing Boats

The AIRMAR B45 XSONIC Bronze Thru-Hull transducer is purpose-built for compact, high-performance boats, delivering reliable depth and water-temperature data with a minimal hull footprint. Designed for planing-hull powerboats and cruising sailboats up to 9 meters, this transducer provides steady, accurate sonar performance without cluttering the hull.

Dual-frequency versatility — switch between 50 kHz for broad, long-range depth data and 200 kHz for high-detail imaging and target recognition. The dual-frequency design adapts to varying water depths and conditions without requiring hardware changes, so you stay informed whether you’re navigating shallow channels or offshore waters.

Compact bronze thru-hull design — the smallest bronze thru-hull option in AIRMAR’s lineup, engineered to minimize hull intrusion while maximizing signal and durability. The bronze housing, paired with a urethane window, stands up to fibreglass and wood hulls in coastal and inland waters, giving you enduring performance where it matters most.

Ceramic sensing element — delivers more power into the water, producing clearer echoes, improved bottom detection, and sharper target detail. This translates to more confident readings in cluttered or sandy bottoms and when conditions get rough.

Aerodynamic fairing — an integrated fairing deflects aerated water away from the transducer face, helping to maintain solid echoes in chop and rough seas. The result is steadier depth readings and more consistent performance as you push your boat toward planing speeds.

Ready-to-install package — includes a fairing block and all necessary hardware for boats up to 9 m (approximately 30 ft). A 12 m cable with a connector provides flexible mounting options and straightforward integration with most marine sounders and chartplotters.

Why this transducer matters on your boat

• Reliable depth and temperature data across a wide range of depths and water temperatures, helping you navigate safely and plan trips with confidence.
• Minimal hull interference with a rugged bronze housing designed for long-term durability in coastal and inland environments.
• High-quality bottom detection and target detail thanks to the ceramic sensing element and optimized face geometry for consistent echoes.
• Ease of installation on small boats, with a complete mounting package and a robust, 12 m cable to suit tight compartments and varied layouts.

Ideal for small powerboats and cruising sailboats up to 9 meters, the AIRMAR B45 XSONIC Bronze Thru-Hull 50/200 kHz Transducer delivers dependable, high-fidelity sonar performance when every inch of hull speed matters. Move with confidence from shallow channels to deeper, open-water zones, knowing you have precise depth and temperature data that helps you navigate smarter and safer.