010-02055-00 Garmin 999.00  

Garmin GCV 20 Sonar Box with Transd (010-02055-00)

Garmin Part Number: 010-02055-00

Garmin GCV 20 Sonar Box with Transd

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Last updated: 11:54 AM, 3 July 2022
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GCV™ 20 Scanning Sonar Black Box

with GT34UHD-TM Transducer

See the stunning difference in clarity between standard scanning sonar on the left and Ultra High-Definition ClearVü scanning sonar on the right.


Includes GT34UHD-TM Transducer

Clarity and detail are redefined with the Ultra High-Definition scanning sonar system. Using an easy-to-install, networkable GCV 20 sonar black box with an included three-array GT34UHD transducer, now you can get scanning sonar images in ultra high-definition. You see everything below and off to the sides of your boat in amazingly sharp, crisp detail.


Ultra High-Definition ClearVü Scanning

This sonar system provides brilliant image clarity of structure and fish below your boat at greater depths than other high-frequency scanning sonars by putting more power on targets via a downward-facing element.


Ultra High-Definition SideVü Scanning

See stunningly clear images of structure and fish off to the sides of your boat. This makes it easy to scout a fishing area quickly, because you can see everything the first time with such amazing clarity.


Share Sonar Images

You can share your Ultra High-Definition scanning sonar images seamlessly across multiple networked chartplotters. You can also add optional Panoptix all-seeing sonar to your networked sonars.



Physical Dimensions 9.9" x 7.6" x 2.6" (251 mm x 192 mm x 66 mm)
Weight 845g (1.86 lbs)
Water rating IPX7
Garmin Marine Network™ ports 3
Temperature range From -15°C to 70°C (5°F to 158°F)

Sonar Features & Specifications

Ultra High-definition Clearvu
Ultra High-definition Sidevu
Frequencies Supported
  • Ultra High-Definition ClearVü: 0.8 MHz (800 kHz), CHIRP range: 760-880 kHz
  • Ultra High-Definition SideVü: 1.2 MHz (1,200 kHz), CHIRP range: 1,060-1,170 kHz
Transmit Power 500 W rms
Maximum Depth
  • 200' Ultra High-Definition ClearVü
  • 125' to each side Ultra High-Definition SideVü, 250' total, at a maximum depth of 30'


Compass-safe Distance 10.2 in. (26 cm)

In The Box

  • GCV 20 Sonar Black Box
  • GT34UHD-TM Transducer
  • Transom Mount
  • Trolling motor mount
  • Right-angle power cable
  • Right-angle ethernet cable
  • Mounting hardware
  • Documentation

Compatible With

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