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Raymarine M78716 Bronze Speed TransducerRaymarine M78716 Bronze Speed Transducer Professional ST800 B120 Thru Hull Marine Instrument Upgrade your marine navigation accuracy with the Raymarine M78716 Bronze Speed Transducer the professional grade ST800 B120 thru hull solution trusted by serious mariners worldwide. This precision engineered bronze transducer delivers reliable speed and temperature readings for boats up to 45 knots, making it essential equipment for performance vessels and

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Raymarine M78716 Bronze Speed Transducer - Professional ST800/B120 Thru-Hull Marine Instrument

Name: Raymarine M78716 Bronze Speed Transducer
Brand: thegrowthteam.biz
SKU: 85915783709
Price: 101.64 USD
Availability: InStock
Rating: 4.6867 (1177 reviews)

Upgrade your marine navigation accuracy with the Raymarine M78716 Bronze Speed Transducer - the professional-grade ST800/B120 thru-hull solution trusted by serious mariners worldwide. This precision-engineered bronze transducer delivers reliable speed and temperature readings for boats up to 45 knots, making it essential equipment for performance vessels and commercial applications.

Why Marine Professionals Choose Bronze Thru-Hull Speed Transducers

The M78716 represents decades of Raymarine engineering excellence, combining marine-grade bronze construction with advanced digital signal processing. Unlike plastic alternatives, this bronze transducer provides superior durability in harsh marine environments while delivering consistent performance across varying sea conditions.

Key Performance Features

Precision Speed Monitoring: Accurate readings from 2 to 45 knots (2-52 MPH) with 1-second update intervals
Low-Profile Design: Minimizes drag with only 3/16" hull protrusion for high-speed performance
Retractable Core: Easy cleaning and maintenance without hauling out
Temperature Sensing: Simultaneous water temperature monitoring for comprehensive data
Bronze Construction: Corrosion-resistant marine alloy suitable for fiberglass and wood hulls
Professional-Grade Cable: 45-foot marine cable with sealed spade connectors

Technical Specifications

Speed Range: 2 to 45 knots (2-52 MPH)

Hull Deadrise: Up to 22 degrees

Installation Hole: 2" diameter

Cable Length: 45 feet with spade connectors

Weight: 2.8 lbs (1.3 kg)

Pressure Rating: 10 feet (3 meters)

Compatible Marine Instruments

The M78716 integrates seamlessly with Raymarine's comprehensive instrument range:

ST Series: ST70 (requires ST70 Speed Pod), ST60+, ST290
i-Series: i40 Speed, i50 Speed, iTC-5
Legacy Systems: ST60 and other analog instruments

Installation Requirements & Hull Compatibility

Compatible Hull Materials:

✅ Fiberglass hulls (recommended)
✅ Wood hulls (bronze required)
❌ Metal hulls (use plastic transducers to prevent electrolytic corrosion)

Installation Considerations:

Professional installation recommended for optimal performance
Requires 2" through-hull fitting (included)
Fairing block may be required for proper alignment
Best performance on straight-shaft inboard and displacement hulls

Why Choose Thru-Hull Over Transom Mount?

Thru-hull transducers like the M78716 offer significant advantages for serious boaters:

Superior High-Speed Performance: Maintains accuracy at planing speeds
Reduced Drag: Low-profile design minimizes hull resistance
Enhanced Signal Quality: Direct hull contact eliminates air bubbles and turbulence
Professional Reliability: Preferred by commercial and racing applications

Raymarine Heritage & Quality Assurance

With over 80 years of marine electronics leadership, Raymarine continues to innovate for recreational and commercial marine markets. The M78716 represents this commitment with:

Rugged Marine Engineering: Designed for harsh saltwater environments
Digital Signal Processing: Advanced microelectronics for precise measurements
Quality Manufacturing: ISO-certified production standards
Limited 2-Year Warranty: Comprehensive coverage for peace of mind

Frequently Asked Questions

Can I install the M78716 on a metal hull boat?

No, bronze transducers should never be installed on metal hulls due to electrolytic corrosion risks. Use plastic transducers like the P120 for aluminum or steel hulls.

What's the maximum boat speed this transducer can handle?

The M78716 accurately measures speeds up to 45 knots (52 MPH), making it suitable for high-performance vessels and racing applications.

Do I need a fairing block for installation?

A fairing block may be required depending on your hull deadrise angle. The M78716 accommodates up to 22 degrees without a fairing block, but proper professional installation assessment is recommended.

Can I clean the transducer without removing it from the boat?

Yes, the M78716 features a retractable core design that allows easy cleaning and maintenance from inside the boat without hauling out or diving.

What instruments are compatible with this transducer?

The M78716 works with Raymarine ST70 (requires Speed Pod), ST60+, ST290, i40/i50 Speed, iTC-5, and legacy analog instruments. Check your specific instrument compatibility before purchase.

Does this transducer provide both speed and temperature readings?

Yes, the M78716 is a dual-function transducer that provides both accurate speed measurements (2-45 knots) and water temperature readings through embedded microelectronics.

Professional Installation & Support

For optimal performance and warranty compliance, professional installation by certified marine technicians is recommended. The M78716 includes comprehensive installation documentation and backed by Raymarine's global technical support network.

Elevate your marine navigation with the proven reliability of Raymarine's M78716 Bronze Speed Transducer - the professional choice for accuracy, durability, and performance on the water.

For more than 80 years, we‘ve been global leaders in high performance marine electronics for the recreational boating and light commercial marine markets. We continue to innovate and provide full electronic systems to boaters around the world. Our products are engineered for the tough marine environment and renowned for ease-of-use, rugged design and reliability. Our full range features chartplotters, fishfinders, radars, marine instruments, marine cameras, AIS units and VHF radios.

Raymarine M78716 Attributes

Mounting Location: Thru-Hull Mount
Supported Angle: 0 To 22 Degree Deadrise Angle
Cable Length: 45 Feet

Raymarine M78716 Features & Benefits

Retractable Core For Easy Cleaning And Maintenance
2 Inch, Bronze Through Hull Fitting Suitable For Fiberglass Or Wood Hulls
Compatible With Analog Instruments Like I40 Speed, I50 Speed, ITC-5, ST60+ Speed, ST60 And Legacy Analog Instruments
Rugged Design And Reliability
Limited 2 Year Warranty

Raymarine M78716 Warranties

Raymarine-Global-Limited-Warranty-01-Jul-17-rev1-0.pdf

Compatible with the following instruments:

ST70*
ST60+
ST290

Compatible hull material: Wood and fiberglass

Cable: 45 ft. cable

Hole diameter for installation: 2"

*Using with ST70 requires purchase of ST70 Speed Pod, sold seperately.

The Raymarine ST800/P120 thin through-hull sensor has an intelligent speed and temperature sensor, which can process the digital signal inside the shell and send the data to the host.
SKU: NVN-14086
MPN: M78716
UPC: 023193787169