Furuno 520-BLD Bronze Thru-Hull Low Profile Transducer - 600W Marine Depth Sounder with 10-Pin Connector
Professional-grade bronze thru-hull transducer delivering exceptional depth and fish finding performance for serious anglers and commercial mariners
Superior Marine Electronics from the Industry Leader
For over 70 years, Furuno has been the trusted choice for marine electronics professionals and enthusiasts worldwide. The Furuno 520-BLD Bronze Thru-Hull Transducer represents decades of engineering excellence, combining 600-watt power output with durable bronze construction for unmatched performance in demanding marine environments.
This low-profile thru-hull transducer delivers crystal-clear depth readings and fish detection capabilities through its advanced dual-frequency technology (50/200 kHz), making it the perfect choice for both recreational boaters and commercial fishing operations seeking reliable underwater imaging.
Technical Specifications & Performance Data
Power & Frequency
- Power Output: 600 Watts maximum
- Operating Frequencies: 50 kHz / 200 kHz dual frequency
- Depth Range: Up to 1,200 feet (366 meters)
- Beam Angles: 45° (50 kHz) / 15° (200 kHz)
Physical Construction
- Housing Material: Marine-grade bronze construction
- Mounting Type: Thru-hull installation
- Profile: Low-profile design minimizes drag
- Cable Length: 30 feet (9.1 meters)
- Connector: 10-pin marine connector
Advanced Features & Benefits
? Professional Bronze Construction
Marine-grade bronze housing provides superior corrosion resistance and durability in saltwater environments, ensuring decades of reliable performance.
⚡ High-Power 600W Performance
Delivers exceptional penetration and clarity with 600-watt power output, providing accurate readings even in challenging water conditions and depths up to 1,200 feet.
? Dual-Frequency Technology
50/200 kHz dual frequencies offer versatile performance: 50 kHz for deep water with wide coverage, 200 kHz for shallow water with fine detail resolution.
? Low-Profile Hydrodynamic Design
Streamlined low-profile housing minimizes drag and turbulence while maintaining optimal sonar performance, perfect for high-speed applications.
? Ready-to-Install Configuration
Includes 30-foot marine cable with 10-pin connector, compatible with Furuno fish finders and depth sounders for easy professional installation.
Installation & Compatibility Information
The Furuno 520-BLD features a thru-hull mounting system designed for permanent installation through the boat's hull. This professional-grade transducer requires proper through-hull installation following ABYC standards for marine electrical systems.
Compatible Equipment
- Furuno fish finders with 10-pin transducer connections
- Furuno depth sounders supporting 600W power output
- Marine electronics requiring 50/200 kHz dual-frequency capability
Installation Requirements
- Through-hull mounting hardware (included)
- Proper marine sealant application
- Professional installation recommended
- ABYC-compliant electrical connections
Ideal Applications & Use Cases
? Sport Fishing
Perfect for serious anglers requiring precise fish location and bottom structure identification in both shallow and deep waters.
? Commercial Fishing
Professional-grade performance for commercial vessels requiring reliable depth measurement and fish detection capabilities.
⛵ Navigation & Safety
Essential depth information for safe navigation in unfamiliar waters and shallow areas where accurate bottom tracking is critical.
? Scientific Research
Reliable data collection for marine research applications requiring consistent and accurate underwater measurements.
Warranty & Quality Assurance
Backed by Furuno's Limited 3-Year Warranty, this transducer represents the company's commitment to quality and reliability. Furuno's extensive dealer network provides professional installation support and ongoing technical assistance.
Frequently Asked Questions
What's the maximum depth capability of the 520-BLD?
The Furuno 520-BLD can accurately measure depths up to 1,200 feet (366 meters) under optimal conditions, making it suitable for most recreational and commercial fishing applications.
Is this transducer suitable for high-speed applications?
Yes, the low-profile bronze design minimizes drag and turbulence, making it ideal for high-speed trolling and fast cruising while maintaining sonar performance.
What fish finders are compatible with the 10-pin connector?
The 520-BLD is designed for Furuno fish finders and depth sounders with 10-pin transducer connections that support 600-watt power output and dual-frequency operation.
Why choose bronze over plastic for transducer construction?
Bronze construction provides superior durability, corrosion resistance in saltwater, and better sonar performance compared to plastic housings, making it the preferred choice for professional applications.
Can this transducer be used in both fresh and saltwater?
Absolutely. The marine-grade bronze construction and quality components make it suitable for both freshwater and saltwater environments with excellent corrosion resistance.
What installation considerations are important for thru-hull transducers?
Professional installation is recommended, requiring proper through-hull fitting, marine sealant application, and ABYC-compliant electrical connections for optimal performance and safety.