Garmin GSD 25 Sonar Module
$441.00
Garmin GSD 25 Sonar Module is a remote network sonar solution for compatible Garmin MFD installations. It delivers dual-channel 1 kW CHIRP plus CHIRP DownVü and SideVü scanning sonar for offshore fishfinding, bottom tracking, and clearer target separation at depth.
Overview Garmin GSD 25 Sonar Module
The Garmin GSD 25 Sonar Module is designed for networked Garmin helm systems that need more advanced sonar performance than a display alone can provide. It adds high-power remote processing for traditional CHIRP sonar as well as CHIRP DownVü and SideVü scanning sonar on compatible multi-function display installations.
This module is aimed at serious offshore fishing applications where bottom definition, fish separation, and deep-water performance matter. Garmin rates the system for depths down to 5,000 feet, making it suitable for crews that need strong bottom tracking and clearer interpretation of deep structure.
Key Features
- True dual-channel 1 kW CHIRP lets you pair low, medium, or high CHIRP ranges to optimize sonar response for different depths and target conditions.
- Garmin CHIRP DownVü and SideVü scanning sonar improve image clarity to help distinguish fish and structure below and to the sides of the boat.
- Depth capability to 5,000 feet supports offshore use where deep-water target separation and bottom tracking are especially important.
- Remote network design keeps sonar processing off the display and integrates with compatible Garmin MFD installations.
- Garmin proprietary transducer support is intended to get the best performance from traditional CHIRP and scanning sonar functions.
- Built for serious sportfishing setups where one-box sonar expansion is preferred over mixing separate standalone fishfinder hardware.
Applications
- Offshore sportfishing boats with networked Garmin displays that need stronger deep-water sonar performance.
- Installations where crews want CHIRP traditional sonar together with DownVü and SideVü scanning views from the same remote module.
- Boats that need better bottom tracking and clearer sonar separation at key fishing depths.
Specifications
| Type | Remote network sonar module |
| Traditional Sonar | Dual-channel 1 kW CHIRP |
| Scanning Sonar | Garmin CHIRP DownVü and CHIRP SideVü |
| Depth Capability | Up to 5,000 ft |
| Transducer | Sold separately |
| Compatible Series | Garmin GPSMAP 8000 Glass Helm and GPSMAP 7400/7600 displays |
What’s Included
- Garmin GSD 25 sonar module
- Documentation
Frequently Asked Questions About Garmin GSD 25 Sonar Module
What does Garmin GSD 25 Sonar Module contribute to the sonar view?
Garmin GSD 25 Sonar Module is a remote network sonar solution for compatible Garmin MFD installations. That makes it a sonar add-on intended to improve underwater views through an existing compatible display system.
What does this module focus on underwater?
The listed product details include dual-channel 1 kW CHIRP plus CHIRP DownVü and SideVü scanning sonar for offshore fishfinding, bottom tracking, and clearer target separation at depth. Those points show that the focus is on scanning detail, helping the operator read structure and fish position more clearly around the boat.
How does this scanning sonar unit fit into a display network?
The supplied information mentions compatible Garmin MFD installations, showing that this unit is meant to send sonar functions into a compatible display network instead of relying on a separate standalone screen at the helm.
Who is this scanning sonar module best suited to?
It is particularly relevant to offshore fishing and sportfishing setups where stronger sonar detail, faster data access, or a better-organized helm can support more efficient decision-making during long days on the water.
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