Airmar R509C-LM Low/Med Chirp 3KW Thru-Hull Mount Depth/Temp Transducer

Exceptional Deep-Water Performance with Chirp Technology

The Airmar R509C-LM is engineered for superior deep-water performance, making it an essential tool for serious offshore anglers and commercial marine operators. Designed for use in demanding marine environments, this powerful 2 to 3 kW low- and medium-frequency transducer provides unparalleled sonar clarity and accuracy.

With Chirp technology, the R509C-LM delivers 5 to 10 times greater detail and resolution compared to conventional frequencies, allowing for precise fish targeting and seabed mapping. The broad frequency range ensures enhanced target separation and greater depth penetration, reaching depths of up to 10,000 feet (3,048 meters) with low-frequency operation.

Advanced Dual-Frequency Operation

This transducer operates across two frequency ranges for optimal coverage:

• Low Frequency (28-60 kHz): Wide beam coverage, ideal for deep-sea fishing. Offers a port-starboard beamwidth of 23° to 9° and a fore-aft beamwidth of 11° to 5°, maximizing detection in deep waters.
• Medium Frequency (80-130 kHz): Narrower beams provide enhanced target resolution at medium depths, reaching up to 3,000 feet (914 meters) with a beamwidth of 13° to 8°.

With 82 kHz of total bandwidth, the R509C-LM covers popular fishing frequencies, including 38, 50, 88, and 107 kHz, ensuring reliable performance across various conditions.

Durable Urethane Housing with Fairing

Built for rugged marine applications, the urethane housing with fairing block ensures optimal hydrodynamics and performance. This design minimizes drag and improves transducer alignment, resulting in accurate sonar readings even at high speeds.

Integrated Depth and Temperature Sensing

The built-in fast-response water temperature sensor provides real-time data for more precise fish-finding and environmental monitoring. Combined with its powerful depth capability, this feature enhances situational awareness for anglers and commercial vessels alike.

Technical Specifications

• Power Output: 2 to 3 kW
• Frequency Range: 28-60 kHz (Low) / 80-130 kHz (Medium)
• Beamwidth: 11°x23°-5°x9° (Low) / 13°-8° (Medium)
• Maximum Depth: 10,000 ft (3,048 m) at Low Frequency / 3,000 ft (914 m) at Medium Frequency
• Housing Material: Urethane
• Acoustic Window: Epoxy/urethane
• Cable Length: 15 m (49 ft)
• Connector: Bare Wire
• Deadrise Range: Up to 25° with fairing
• Maximum Deadrise: Up to 22°

Highlights

• Chirp-ready transducer for enhanced sonar detail and resolution
• Covers a broad frequency range for superior fish detection
• Integrated temperature sensor for real-time environmental monitoring
• Optimized hydrodynamic design for accurate readings at high speeds
• Rugged urethane housing ensures durability in harsh marine environments

This high-performance thru-hull transducer is the perfect solution for those requiring maximum depth capability and unparalleled sonar detail. Whether targeting deep-water species like swordfish and tuna or conducting underwater surveys, the Airmar R509C-LM delivers the clarity, precision, and reliability needed for marine professionals and serious anglers alike.

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