GARMIN GT30-TH Stainless Steel Thru-hull DownVü/SideVü 500W
The GARMIN GT30-TH is a stainless steel thru-hull transducer designed for DownVü and SideVü sonar applications with a power output of 500W. It is installed on vessels to provide detailed underwater imaging for navigation and fishing.
Compatibility & Applications
- Fits Garmin chartplotters for enhanced sonar imaging.
- Mounts on vessels with a hull thickness of up to 2 inches.
- Pairs with Garmin’s DownVü and SideVü sonar technologies.
- Replaces older Garmin thru-hull models without significant modifications.
- Integrates with NMEA 2000 for networked marine applications.
- Wires to 12V DC systems for power supply.
- Compatible with both sailboats and powerboats ranging from 20 to 40 ft.
The unit provides high-resolution sonar images for both DownVü and SideVü applications. For instance, it can be installed in the transom of a 30 ft sportfish vessel, delivering superior underwater visibility. Its robust stainless steel construction differentiates it from generic plastic equivalents, ensuring longevity and performance in marine environments.







