Garmin GSD25 Premium Sonar Module

The Garmin GSD25 Premium Sonar Module is a premium remote network sonar designed for serious anglers who rely on deep, clear underwater imagery. It works with compatible Garmin chartplotters to deliver CHIRP performance, DownVü and SideVü scanning, and precise target separation—even at great depths (transducer sold separately).

• Transmit Power: 1 kW for deep-water clarity and strong target resolution
• Maximum Depth: 5000 ft
• Frequencies Supported: Traditional CHIRP 50/200, 77/200, 83/200; Single Channel CHIRP 40-250; Dual Channel CHIRP 40-250; SideVü/DownVü CHIRP 455/800 & 260/455 (dependent on transducer)
• DownVü & SideVü Scanning: CHIRP-enabled imaging below and to the sides of your boat for enhanced fish detection and habitat understanding
• Remote Network Module: Integrates with compatible Garmin chartplotters to stream integrated sonar imagery (transducer sold separately)
• Garmin Network Ports: 1
• Waterproof Rating: IPX7
• Temperature Range: 5°F to 158°F (-15°C to 70°C)
• Dimensions: 9.9" x 7.6" x 2.6"
• Weight: 1.7 lbs
• Input Voltage: 10-35V DC
• Input Amps: 27 W max
• Included in the Box: GSD25 Premium Sonar Module; Right Angle Power Cable (6 ft); Right Angle Network Cable (6 ft); mounting hardware; documentation

Invest in the GSD25 to unlock precise bottom tracking, enhanced fishfinding, and clearer scanning that helps you differentiate targets with confidence—day after day on the water. Its remote network design and CHIRP imaging streamline how you interpret sonar data alongside your Garmin chartplotter, supporting better on-water decisions.