Garmin Transom Depth Transducer GT20-TM, HD-ID, ClearVu, 500W (4-pin)


Brand new and boxed Garmin GT20-TM Transom Mount ClearVü 500 W (CHIRP 455/800 kHz) Traditional 500 W (77/200 kHz) Transducer for depth and temperature – 4pin connector

SKU: ETGDT4dv20 Categories: , , , Tags: , , ,


Get ultra-clear sonar pictures of objects, structure and fish that pass below your boat with this all-in-one 4-pin transducer.

This 20 ft transducer cable with built-in fast response temperature sensor has a power rating of 500 W; a maximum depth of 1,900 ft (traditional) and 750 ft (ClearVü); an operating frequency of 77/200 kHz (traditional) and 455 (ClearVü); 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.


Weight: 0.73 lbs. (0.33 kg)
Cable length: 20’
Number of pins on connector: 4
Transducer: 5.9 x 2.0 x 0.9 in (150 x 52 x 22 mm)
Traditional: 77/200 kHz
ClearVü: CHIRP 435-475 kHz and CHIRP 800-840 kHz
Transmit power:
Traditional: 500 W
ClearVü: 500 W
Max Depth:
Traditional: 1,900 ft
ClearVü: 750 ft
Beam Width (°) LF/HF (-3dB):
Traditional: 45/15
ClearVü: 2.5×53
Read water temperature: Yes

These Transducers are suitable for the current range of Garmin “echo cv” series, “echoMAP cv” series, “echoMAP CHIRP cv” series and “STRIKER cv” series of products inc EchoMAP 45dv etc.  NOT suitable for use with older style products with 6pin connector such as 451S or for products with 8pin connector such as echoMAP 50s/70s.

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