Upgrade your marine navigation and fishing with the Garmin GCV™ 20 Ultra HD Scanning Sonar Black Box paired with the GT34UHD-TM Transom Mount Transducer (010-02055-00) .
This premium marine sonar kit delivers Ultra High-Definition ClearVü and SideVü imaging for superior underwater structure and fish detail.
Compatible with multiple Garmin chartplotters, the GCV 20 supports networked Panoptix™ all-seeing sonar, 500W transmit power, and maximum depth up to 250'.
Perfect for saltwater and freshwater boats, fishing, and high-performance marine applications.
Sonar Kit Features
Ultra High-Definition ClearVü: crystal-clear imaging below your boat to 200' depth.
Ultra High-Definition SideVü: stunning side imaging up to 125' each side, 250' total.
Networkable: share sonar images seamlessly across multiple chartplotters.
Three arrays including downward-facing element for superior detail.
Frequencies supported: ClearVü 0.8 MHz (CHIRP 760–880 kHz), SideVü 1.2 MHz (CHIRP 1060–1170 kHz).
Max transmit power: 500W RMS for high-definition performance.
Waterproof: IPX7 rating ensures marine durability.
Garmin Marine Network™ ready: 3 ports for flexible installation.
Operating temperature: 5°F to 158°F (-15°C to 70°C).
Specifications – GCV 20 Black Box
Dimensions: 9.9" × 7.6" × 2.6" (251mm × 192mm × 66mm)
Weight: 1.86 lbs (845g)
Temperature range: 5°F to 158°F (-15°C to 70°C)
Garmin Marine Network™ ports: 3
Water rating: IPX7
Sonar Performance
ClearVü frequency: 0.8 MHz, CHIRP 760–880 kHz
SideVü frequency: 1.2 MHz, CHIRP 1060–1170 kHz
Max depth: 200' down, 125' sides, 250' total
Transmit power: 500W
GT34 Transducer Highlights
Ultra High-Definition ClearVü and SideVü scanning
3 arrays including downward-facing element
Beamwidth: ClearVü 0.74° × 46°, SideVü 0.44° × 55°
Depth/Speed/Temperature: supports both functions
Cable length: 20' with 12-pin connector
Supported transom angles: 0°–70°
What’s Included in the Box
GCV 20 Sonar Black Box
GT34UHD-TM Ultra HD Transom Mount Transducer
Right-angle power cable
Right-angle Ethernet cable
Mounting hardware
Documentation
Warranty
1-Year Garmin Manufacturer Warranty
Why Choose the Garmin GCV 20 Kit?
Add Ultra HD sonar to any compatible chartplotter
Quickly identify structure, underwater terrain, and fish
Network images across multiple devices for team fishing
Rugged IPX7 design for saltwater and freshwater reliability
Compatible with Panoptix™ and Garmin Marine Network™
Elevate your marine experience with the GCV 20 + GT34UHD-TM kit.
Ideal for serious anglers and boaters who demand high-definition sonar, precise depth readings, and networked functionality. Install easily and explore Ultra HD imaging both below and alongside your boat for unparalleled underwater visibility.
Brochure (pdf)
VIDEO
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 .
