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Garmin GT20-TM
Transom or Trollong Motor Mount DownVü 500 W (CHIRP 455/800 kHz)
Traditional 500 W (77/200 kHz) Transducer with Temp (8-pin)

Discontinued. Replaced by 010-12758-01 >>

Get ultra-clear sonar pictures of objects, structure and fish that pass below your boat with this all-in-one 8-pin transducer.

This 20 ft transducer cable with built-in fast response temperature sensor has a power rating of 500 W; a depth of 1,900 ft (traditional) and 750 ft (DownVü); an operating frequency of 77/200 kHz (traditional) and 455 kHz (DownVü); 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: 0.79 lbs. (0.36 kg)
Cable length: 20’
Number of pins on connector: 8
          Transducer: 5.9 x 2.0 x 0.9 in (150 x 52 x 22 mm)
          Traditional: 77/200 kHz
          DownVü: CHIRP 435-475 kHz and CHIRP 800-840 kHz
Transmit power:
          Traditional: 500 W
          DownVü: 500 W
Max Depth: 
          Traditional: 1,900 ft
          DownVü: 750 ft
Beam Width (°) LF/HF (-3dB):
          Traditional: 45/15
          DownVü: 2.5x53
Read water temperature: Yes

Compatible with:
Garmin echoMAP 50dv, 70dv

Garmin echoMAP CHIRP 7dv series, CHIRP 7sv series, CHIRP 9sv series
Garmin GPSMAP 527xs, 547xs
Garmin GPSMAP 721xs, 741xs
Garmin GPSMAP 820xs, 840xs

Garmin GPSMAP 1020xs, 1040xs

Garmin GPSMAP 7607xsv, 7608xsv, 7610xsv, 7612xsv, 7616xsv

Garmin GSD 25 Premium Sonar Module

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Garmin downvu transducer
Garmin GT20-TM Transducer (8-pin)

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