Raymarine M78713-PZ P19 Lexan Depth Transducer - Low-Profile Through-Hull for ST60 & ST290 Marine Instruments

Low-Profile Marine Depth Sensing Technology

• Ultra-Low-Profile Design: Nearly flush-mount housing extends only 5mm (3/16") below hull surface, minimizing drag and turbulence for optimal vessel performance
• High-Frequency Precision: 200 kHz operating frequency provides accurate depth readings and detailed bottom composition for navigation and fishing applications
• Lexan Construction Excellence: Durable plastic housing withstands marine environments while providing cost-effective performance for recreational and commercial vessels
• Built-in Deadrise Compensation: Tilted ceramic element design accommodates deadrise angles from 0° to 8° for accurate readings on various hull configurations
• Universal Hull Compatibility: Designed for both aluminum/metal and fiberglass hulls with professional 2-inch through-hull installation
• Extended Cable Run: 45-foot marine-grade cable with spade connectors provides installation flexibility for various vessel layouts

Technical Specifications

Instrument Compatibility Matrix

Professional Installation Advantages

The P19 design represents the optimal balance between performance and hull integrity. The ultra-low-profile configuration minimizes water flow disruption, making it ideal for high-performance vessels where speed and fuel efficiency are priorities. The nearly flush-mount design also reduces the risk of impact damage in shallow water or during hauling operations.

Installation Specifications: Requires a clean 2-inch diameter hole through the hull with appropriate marine sealant and backing plate. The built-in deadrise compensation eliminates the need for angled installation in most applications, simplifying the installation process while maintaining accuracy.

Marine Environment Performance

The Lexan plastic construction provides excellent durability and chemical resistance against marine growth, salt corrosion, and UV exposure. Unlike bronze through-hulls, the plastic construction eliminates galvanic corrosion concerns and provides consistent performance in all water conditions. The smooth surface finish resists marine growth accumulation that can affect transducer performance.

Navigation & Fishing Applications

The 200 kHz frequency provides excellent detail resolution for both navigation safety and fishing applications. Higher frequency operation delivers superior bottom detail and fish separation compared to lower frequency transducers, making it ideal for coastal cruising, sport fishing, and shallow water navigation where precise depth measurement is critical.

System Integration Benefits

Seamless integration with Raymarine's SeaTalk network enables depth data sharing throughout the vessel's instrumentation system. Multiple displays can simultaneously show depth information, while the data can be integrated with chartplotters, autopilots, and other navigation systems for comprehensive situational awareness.

What's Included

• Raymarine M78713-PZ P19 Lexan Depth Transducer
• 45-Foot Marine-Grade Cable with Spade Connectors
• Through-Hull Installation Hardware
• Sealing Gaskets and O-Rings
• Installation Instructions and Wiring Diagram
• Manufacturer Limited Warranty

Maintenance & Longevity

The plastic construction requires minimal maintenance beyond periodic cleaning to remove marine growth. The smooth Lexan surface allows for easy cleaning without risk of scratching or damage. Regular inspection of cable connections and through-hull sealing ensures long-term reliability and performance.

Frequently Asked Questions

Frequently Asked Questions (FAQ) About Raymarine Lexan Depth Transducer f/ST60 & ST290