Garmin GCV 20 Ultra HD Scanning Sonar Black Box
The Garmin GCV 20 provides an Ultra HD scanning sonar black box without a transducer. Its module-only configuration allows installers to select compatible sensing hardware separately, while the sonar processor supports detailed underwater imaging through connected Garmin marine displays.
Garmin GCV 20 Ultra HD Scanning Sonar Black Box Specs
| Brand | Garmin |
| Model | GCV 20 (010-02055-00) |
| Sonar Support | Ultra HD ClearVü & Ultra HD SideVü |
| Frequencies | 800 kHz (ClearVü) / 1,200 kHz (SideVü) |
| Networking | 3x Garmin Marine Network Ports (Ethernet switch) |
| Max Depth/Range | ClearVü: 200ft | SideVü: 125ft (each side) |
| Transducer | Not Included (Unit only) |
| Compatibility | GPSMAP 7x2/9x2/12x2, ECHOMAP Plus/UHD/Ultra |
| Warranty | 1-Year Limited Warranty |
| Origin | Made in Taiwan |











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