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Garmin GT51M-TM Transom Mount Transducer

Product Code: GARGT51TM

The Garmin GT51M transom mount transducer is perfect for freshwater fishermen who want CHIRP traditional sonar and CHIRP ClearVu and CHIRP SideVu scanning sonar. This transom mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below and to the side of the boat.

Once connected to your compatible Garmin Chartplotter or Fishfinder the GT51M transom mount mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear pictures of objects, structure and fish that pass below and to each side of your boat and is optimised for rough sea conditions.

The 12-pin transducer features CHIRP ClearVü/SideVü elements which have a power rating of 500 W per element and operating frequencies of 260/455 kHz. The traditional CHIRP sonar has a power rating of 600 W and operating frequencies of mid-band CHIRP 80-160 kHz. It also includes a built-in fast response temperature sensor.

Compatibility: Compatible with selected Garmin chartplotter/fishfinders models, please complete our online form on the Garmin Transducers Buyer's Guide page.


Garmin GT51M-TM Transom Mount Transducer - £479.99


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Garmin GT51M Transom Mount

The Garmin GT51M transom mount transducer is perfect for freshwater fishermen who want CHIRP traditional sonar and CHIRP ClearVu and CHIRP SideVu scanning sonar. This transom mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below and to the side of the boat.

Once connected to your compatible Garmin Chartplotter or Fishfinder the GT51M transom mount mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear pictures of objects, structure and fish that pass below and to each side of your boat and is optimised for rough sea conditions.

The 12-pin transducer features CHIRP ClearVü/SideVü elements which have a power rating of 500 W per element and operating frequencies of 260/455 kHz. The traditional CHIRP sonar has a power rating of 600 W and operating frequencies of mid-band CHIRP 80-160 kHz. It also includes a built-in fast response temperature sensor.

GT51M-TM is ideal for mounting to a trolling motor due to its compact size. For installation, follow the included instructions carefully to avoid damaging your boat.


Key Features

‣Transom mount transducer
‣12-pin thru-hull transducer
‣CHIRP Mid Band (80/160kHz), ClearVü/SideVü: CHIRP 245/275kHz and 445/465kHz
‣Depth - Traditional: 1,800 foot, ClearVu: 1,000foot, SideVu: 750 foot
‣Genuine Garmin accessory


What's in the box?

‣12-pin transducer with mounting hardware
‣Installation instructions


What is the Garmin GT51M-TM compatible with?

The genuine Garmin GT51M is thru-hull transducer and is compatible with selected Garmin chartplotter/fishfinders models. Unless you are sure it is compatible with your Garmin marine GPS device please complete our online form on the Garmin Transducers Buyer's Guide page.

Once you have completed the online form with details of the Garmin marine device you own or intend to use your Garmin transducer with, we will then be able to confirm the exact transducer best suited to your needs.

The Garmin Transducer online form also asks: What material is your boat's hull made from? How is your motor mounted? Which transducer mounting style would you like to use? What is the deadrise angle of the boat's hull where the transducer will be mounted? What sonar view(s) do you require?

View the Garmin Transducer Buyer's Guide


Garmin GT51M-TM Technical Specification

Frequency: Traditional: CHIRP Mid Band (80/160kHz), ClearVü/SideVü: CHIRP 245/275kHz and 445/465kHz
Power: CHIRP Traditional: 600 watts, ClearVu/SideVu: 500 watts
Beam width (°) LF/HF (-3dB): Traditional: (24°-13°), ClearVu/SideVu: 2.0x51@260kHz and 1.4x29 @455kHz
Maximum depth: Traditional: 1,800 foot, ClearVu: 1,000foot, SideVu: 750 foot
Depth/Speed/Temperature: Depth and Temperature
Number of pins: 12-pin
Cable length: 30 foot

Manual requires Adobe Acrobat Reader
Download a free copy here

This product is a sophisticated electronic device which requires that you read, understand, and act upon the information given in the instruction manual (usually available via the above 'manual' link).


Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

This page was last updated on: 31st August 2021

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