SKU: 26906029272

Garmin GCV™ 20 Ultra HD Scanning Sonar Black Box w/ GT34UHD-TM Ultra HD Transom Mount Transducer

Sale price$350.86 Regular price$389.84
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Garmin GCV™ 20 Ultra HD Scanning Sonar Black Box w/ GT34UHD-TM Ultra HD Transom Mount TransducerGCV 20 Ultra HD Scanning Sonar Black Box with GT34UHD TM Ultra HD Transom Mount Transducer Add Ultra High Definition Scanning Sonar to Your Compatible Chartplotter The easy to install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High Definition ClearV and Ultra High Definition SideV scanning sonars with frequencies ranging from 0. 8 MHz (800 kHz)

GCV™ 20 Ultra HD Scanning Sonar Black Box with GT34UHD-TM Ultra HD Transom Mount Transducer

Add Ultra High-Definition Scanning Sonar to Your Compatible Chartplotter
The easy-to-install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High-Definition ClearVü and Ultra High-Definition SideVü scanning sonars — with frequencies ranging from 0.8 MHz (800 kHz) to 1.2 MHz (1,200 kHz) — to your compatible chartplotter. And you can share sonar images seamlessly across multiple networked chartplotters as well as networking Panoptix™ all-seeing sonar. It includes a max power output of 500 watts.

Ultra High-Definition ClearVü Scanning
This mode 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
This mode delivers 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.

Specifications:

General:

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

Sonar Features & Specifications:

  • 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: 500W rms
  • Maximum depth: 
  • 200' Ultra High-Definition ClearVü
  • 125' to each side Ultra High-Definition SideVü, 250' total

What's In The Box?:

  • GCV 20
  • Right-angle power cable
  • Right-angle ethernet cable
  • Mounting hardware
  • Documentation

GT34UHD-TM Ultra HD Transom Mount Transducer

Ultra High-Definition Sonar System Transom Mount Transducer
Add stunningly clear Ultra High-Definition ClearVü and Ultra High-Definition SideVü scanning sonar images to your compatible chartplotter via the GCV™ 20 sonar module. It includes 3 arrays, including a downward-facing element, with frequencies ranging from 0.8 MHz (800 kHz) to 1.2 MHz (1,200 kHz).

Ultra High-Definition ClearVü Scanning
This mode 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
This mode delivers 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.

Specifications:

  • Frequency:
  • 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
  • Power: 500W
  • Beamwidth:
  • Ultra High-Defintion ClearVü: 0.74° x 46°
  • Ultra High-Defintion SideVü: 0.44° x 55°
  • Maximum depth
  • Ultra High-Defintion ClearVü: 200' down
  • Ultra High-Defintion SideVü: 125' sides, 250' total
  • Depth/Speed/Temperature: Depth and Temperature
  • Number of pins: 12-pin
  • Cable length: 20'
  • Supported deadrise/Transom angles: 0°-70° degree transom

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Manufacturer Part Numbers: 010-02055-00
Brochure Literature (PDF)
GRP:WRO
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 26906029272

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Hope Lyon
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★★★★★ 5
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Size: Dual, Style: Glass Free Stand, Size: Dual, Style: Glass Free Stand
Perfect! This was the 3rd monitor stand I purchased this month. The others either were too bulky of a base and/or I could never get the monitors level! This is perfect! Was easy to assemble and it’s easy to move them & adjust tilt & spacing.
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Reviewed in the United States on April 24, 2026
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Sam tt
West Palm Beach, US
★★★★★ 4
Sturdy with good finish
Size: Dual, Style: Glass Free Stand
Easy to set up. Good finish. Sturdy. Using 2 x 27" monitors . A bit difficult to align them seamlessly. Suggest getting monitor alignment aids together with this.
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Reviewed in the United States on March 25, 2026
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Dan
Natrona Heights, US
★★★★★ 5
The best Quad Monitor Mount under $100
Size: Quad, Style: Glass Free Stand
Great monitor stand. I got the Quad. It's base is nice and you can put stuff on it unlike the other popular quad mount that is V shaped. You can get the monitors 98% aligned, then use gaffers tape for the last 1% (99% perfect, slight gaps that I couldn't fill). Strong, sturdy, tempered glass base, metal pole. And cheap price. This is the one to get for a quad setup. I stripped the bolt on the VESA monitor mount bracket and the seller took care of me. No worries.
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Reviewed in the United States on January 14, 2026
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Marcus Gladney
Belleville, US
★★★★★ 5
Excellent stand
Size: Dual, Style: Glass Free Stand
I love the functionality of this stand! It is very durable and stable. It does not require any form of anchoring to hold monitors. I have two 27 inch monitors attached to my stand with no problems. The stand can be moved in various direction with little effort. Excellent stand if you are looking to enhance your office space.
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Reviewed in the United States on November 27, 2024
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Linda
Dallas, US
★★★★★ 5
Great Stand
Size: Triple, Style: Glass Free Stand
I am very happy with my purchase. This stand was very easy to put together and it is also extremely sturdy. Does exactly what I need it to do.
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Reviewed in the United States on January 29, 2026

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