Garmin GSD™ 25 Premium Sonar Module

The Garmin GSD™ 25 Premium Sonar Module is a remote network sonar solution designed for offshore anglers and vessels with networked MFD installations. It combines true dual-channel CHIRP with DownVü and SideVü scanning to deliver clear, detailed fish and bottom images at depths down to 5,000 feet.

• True Dual-Channel CHIRP, 1 kW: CHIRP frequencies can be adjusted to low/medium, low/high, or medium/high to optimize performance and target resolution.
• CHIRP DownVü and SideVü: Adds DownVü and SideVü scanning for razor-sharp images of fish and structure below and to the sides of your boat.
• Depth capability: Capable of detecting targets at depths up to 5,000 feet, ideal for offshore waters.
• Remote network sonar solution: A single-box solution for vessels with networked MFD installations, delivering comprehensive fishfinding and depth data.
• Compatibility with Garmin GPSMAP displays: Works with GPSMAP 8000 Glass Helm Series, GPSMAP 7400/7600 Series displays, and other compatible chartplotters.
• Transducer sold separately: Garmin proprietary transducers are recommended to achieve the best performance with the GSD 25.
• In the box: GSD 25 Right-angle power cable (6 feet), Right-angle network cable (6 feet), Mounting hardware, Documentation.
• Prop 65 warning: This product includes a California Prop 65 warning notice.

With the GSD 25, you gain integrated fishfinding and depth data across your Garmin chartplotters, enabling precise target discrimination and confident offshore decisions. The one-box design simplifies installation on networked vessels, while DownVü and SideVü deliver comprehensive views of fish and structure around your boat. Transducer selection is flexible, allowing you to pair the module with Garmin-proprietary transducers tailored to your fishing needs. In the box you’ll find essential cables, mounting hardware, and documentation to get you started.