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Garmin GT20 4-pin and 8-pin Transom Mount Transducers

Product Code: GARGT20

Garmin GT20 4-pin and 8-pin Transom Mount Transducers

The Garmin GT20 transom mount transducer is perfect for the shallow water fisherman who want traditional and CHIRP ClearVu scanning sonar.

Once connected to your compatible Garmin Chartplotter or Fishfinder the GT20 transom mount mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below your vessel.

The 20ft transducer cable with built-in fast response temperature sensor has a power rating of 500W; a depth of 1,900ft (traditional) and 750ft (ClearVu); an operating frequency of 77/200kHz (traditional) and 455kHz (ClearVu); and a 0 to 70 transom angle.

Garmin part numbers: 010-01960-00 (4-pin)
010-01960-01 (8-pin)

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

Garmin GT20 4-Pin Transom Mount Transducer - £89.99

Garmin GT20 8-Pin Transom Mount Transducer - £129.99

Garmin GT20 Transom Mount

The Garmin GT20-TM transom mount transducer is perfect for the shallow water fisherman who want traditional and CHIRP ClearVu scanning sonar.

Once connected to your compatible Garmin Chartplotter or Fishfinder the GT20 transom mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below your vessel.

The 20ft transducer cable with built-in fast response temperature sensor has a power rating of 500W; a depth of 1,900ft (traditional) and 750ft (ClearVu); an operating frequency of 77/200kHz (traditional) and 455kHz (ClearVu); and a 0 to 70 transom angle.

Transducer comes with transom and trolling motor mounts, and installation instructions. Follow the instructions carefully to avoid damaging your boat.


Key Features

‣Transom mount transducer
‣4-pin or 8-pin transom mount transducer (depending upon model ordered)
‣Traditional sonar (77/200kHz)
‣CHIRP ClearVu (455kHz)
‣Traditional/CHIRP Power 500W
‣Genuine Garmin accessory


What's in the box?

‣GT20-TM transducer
‣Transom mount
‣Mounting hardware
‣Documentation


What is the Garmin GT20-TM compatible with?

The genuine Garmin GT20 is transom mount 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 GT20-TM Technical Specification

Frequency: Traditional 77/200; ClearVu CHIRP 455 kHz (435-475 kHz) and 800kHz (800-840 kHz)

Power: Traditional 500W; ClearVu 500W

Beamwidth: Traditional (45/15); ClearVü (2.5x53 @ 455 kHz) and (1.6x29 @ 800 kHz)

Maximum depth: Traditional: 1,900 ft.; ClearVu: 750 ft.

Depth/Speed/Temperature:Depth and Temperature

Number of pins: 4-pin or 8-pin (depending upon model required/ordered)

Cable length: 20 ft.

Supported deadrise/Transom angles: 0°-70° degree transom

Garmin Transom Mount Transducer manual

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 Internet Retailers of Garmin products and we sell genuine Garmin accessories and maps. We purchase from the Garmin UK distributor. 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.

Page updated: 18th October 2017

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