Airmar® 509LHW Thru-Hull CHIRP Transducer

The Garmin Airmar 509LHW delivers tournament-grade sonar performance for serious offshore anglers and professional fishing operations. This premium thru-hull transducer combines dual-frequency CHIRP technology with exceptional power output in the 2-3 kW class, providing unmatched target separation whether you're searching deep-water structure or scanning shallow flats. The narrow-beam, low-frequency band excels at identifying individual fish in deep water while minimizing clutter, while the wideband, high-frequency band provides comprehensive bottom coverage in shallower zones.

With an impressive 10,000-foot depth capability, this transducer handles everything from inshore fishing to serious offshore operations. The sophisticated beamwidth characteristics adapt to different fishing scenarios, delivering crisp bottom detail and precise fish arches that help you distinguish between baitfish schools and trophy targets. The integrated temperature sensor provides another tactical advantage, allowing you to identify temperature breaks and thermoclines that concentrate gamefish.

Installation versatility makes the 509LHW practical for a wide range of hull configurations, accommodating deadrise angles from flat-bottom bay boats to deep-vee offshore hulls. The 50-foot bare wire cable supports flexible routing on larger sportfishing vessels, while the included fairing block ensures optimal water flow and performance.

Key Features

• Dual-frequency CHIRP sonar covers 28-60 kHz low and 150-250 kHz high frequencies for complete water column coverage
• Professional 10,000-foot depth rating handles serious offshore fishing and deep-water structure hunting
• Integrated temperature sensor identifies thermoclines and temperature breaks where gamefish concentrate
• 2-3 kW power output delivers superior target separation and bottom detail in challenging conditions
• Versatile hull compatibility accommodates 0-25 degree deadrise angles for various boat designs
• An extended 50-foot bare wire cable provides installation flexibility on larger sportfishing vessels
• Complete installation kit includes a fairing block for optimal hydrodynamic performance