Sonde GT17M-THF 12° - traversante CHIRP moyenne fréquence - visuel officiel Garmin 2

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Garmin

010-02930-01

GT17M-THF 12° Through-Hull CHIRP Mid-Frequency Sonde

The Garmin GT17M-THF through-hull transducer, 12 degrees, is a robust stainless-steel solution designed for broad compatibility with fiberglass, wood, composite, aluminum, or steel hulls. Its integrated 12-degree angle optimizes sonar performance by compensating for hull drift. The product includes essential galvanic isolation components for installations on metal hulls and requires a software update on the Garmin chartplotter.

Angle: 12 degrees

0 degree 12 degrees 20 degrees

Retail priceBenefit from the professional rate

1.062,07€

1.062,07€ ~~1.399,99€~~

Tax included. Shipping calculated at checkout.

In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Supported sonar technologies	CHIRP mid-band
Fishfinder frequencies	CHIRP 150-240 kHz, CHIRP 40-75 kHz
Transducer material	Stainless steel
Integrated temperature sensor	Yes
Compatible displays	Garmin chartplotters and fishfinders compatible
Wireless connectivity	No
Mounting type	Through the hull
Certifications	CE
CHIRP high frequency	150-240
CHIRP low frequency	40-75
Integrated speed sensor	No
Release year	2024.0

Detailed description

The Garmin GT17M-THF 12° through-hull sonar is a robust and versatile detection solution designed for reliable integration across a wide range of vessels. Its stainless steel housing ensures enhanced durability in marine environments, allowing installation on fiberglass, wood, composite, aluminum, or steel hulls.

Installation and versatility of the GT17M-THF sonar

This model features a 12° internal angle, specifically adapted to compensate for hull drift angles ranging from 6° to 16°, ensuring optimal orientation of the transducer element for precise sonar performance. When installing on aluminum or steel hulls, the use of the included galvanic isolation components is mandatory to prevent corrosion and maintain hull watertight integrity. Installation requires specific tools, such as 98 mm (3 7/8 in) hole saws for fiberglass and 101 mm (4 in) for metal, along with a flexible, fast-curing marine sealant for watertight sealing below the waterline.

Recommendations and maintenance for the Garmin GT17M-THF sonar

Garmin recommends professional installation by a qualified technician to ensure optimal performance and avoid damage to the device or vessel. A software update for the Garmin chartplotter is required after installing this device. Cabling must be routed carefully, away from potential interference sources such as engines and other wiring, using grommets to protect the cable when passing through bulkheads. For maintenance, applying water-based antifouling paint is an option to prevent fouling, and it is critical to check for leaks before leaving the boat in the water for an extended period. The Garmin GT17M-THF 12° through-hull sonar stands as a reliable technical choice for demanding navigators, requiring careful installation but offering robustness and extended compatibility compared to transom-mounted or internal transducers, which are less suited to all hull configurations and marine conditions.

Documentation

Type	Nom
	Installation instructions - GT17M-THF transducer (12 degrees)

Expert opinion

Pol CONIN

Digital Manager

« Robustness and integration of the Garmin GT17M-THF transducer »

The Garmin GT17M-THF through-hull transducer, 12 degrees, stands out with its stainless steel design, ensuring robustness and longevity in the most demanding marine environments. Its extensive compatibility with fiberglass, wood, composite, aluminum, and steel hulls makes it a versatile solution for many types of vessels. The integrated 12-degree internal angle is a major technical advantage, enabling effective correction of hull drift angle for optimized sonar performance, particularly for angles between 6 and 16 degrees. For metal hulls, the inclusion of galvanic isolation components is an essential feature, preventing electrolytic corrosion and ensuring the structural integrity of the mounting point. Although installation requires technical expertise, including precise hull drilling and application of appropriate marine sealant, the provided documentation is comprehensive. The need for a software update to the Garmin chartplotter after installation highlights the system integration of the device, ensuring compatibility and optimal performance with existing equipment. This transducer represents a reliable investment for stable and precise sonar data acquisition.

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GT17M-THF 12° Through-Hull CHIRP Mid-Frequency Sonde

1.062,07€

1.062,07€ ~~1.399,99€~~

Frequently Asked Questions

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Which hull materials is the Garmin GT17M-THF transducer compatible with?

The Garmin GT17M-THF transducer is designed for installation on a wide range of hull materials. Its stainless steel housing makes it compatible with fiberglass, wood, composite, aluminum, or steel hulls.

It is important to note that when installing on aluminum or steel hulls, the included galvanic isolation components must be installed to prevent corrosion.

For which hull deadrise angle is the GT17M-THF transducer with a 12-degree internal angle designed?

The Garmin GT17M-THF transducer with a 12-degree internal angle is specifically designed to compensate for hull drift angles ranging from 6 to 16 degrees. For optimal performance, the angle of the purchased transducer should be as close as possible to the measured drift angle at the installation location.

Is it recommended to have the GT17M-THF transducer installed by a professional?

Yes, Garmin strongly recommends that installation of the GT17M-THF transducer be performed by a qualified marine installer. This ensures not only optimal performance of the device but also helps prevent potential damage to the transducer or the vessel.

Which tools are required to install the Garmin GT17M-THF transducer?

To install the Garmin GT17M-THF transducer, you will need the following tools:

A drill with a 3 mm (1/8 in) bitA wrench suitable for nuts up to 108 mm (4 1/4 in)A 4.5 mm (3/16 in) Allen keyMarine sealant (flexible, fast-curing, for below the waterline)Sandpaper and masking tapeFor fiberglass hulls: a 98 mm (3 7/8 in) hole sawFor metal hulls: a 101 mm (4 in) hole saw and a file

What is the hole size to drill in the hull to install the GT17M-THF transducer?

The hole size to drill in the hull depends on the hull material:

For a solid or laminated fiberglass hull: a 98 mm (3 7/8 in) hole saw is required.For a metal hull (aluminum or steel): a 101 mm (4 in) hole saw is required.It is critical to verify your hull material before drilling.

Are galvanic isolation components required when installing on a metal hull?

Yes, installing the GT17M-THF transducer in an aluminum or steel hull requires mandatory use of the included galvanic isolation components. Failure to install these components will cause galvanic corrosion, potentially leading to water ingress around the transducer and hull damage.

How should I maintain and clean my Garmin GT17M-THF transducer?

To maintain and clean your Garmin GT17M-THF transducer, follow these recommendations:

Never use solvents such as mineral spirits, acetone, methyl ethyl ketone (MEK), or similar products, as they can permanently damage the transducer surface.Do not use an electric sander or pressure washer to clean the transducer.Always ensure the transducer is submerged when in operation, as operating in air can cause heat damage.