Marine electronics, service and installation since 1976
The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities.
- Premium remote network sonar solution- Includes true dual-channel 1 kW CHIRP, plus CHIRP SideVü and DownVü scanning sonar for the clearest images on the water (transducers sold separately)- Provides serious sportsfishers outstanding fishfinding and bottom tracking capabilities- Helps distinguish between small and closely spaced fish at key fishing depths- Depth capability to 5,000 feet
The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities. It offers dual-channel 1 kW CHIRP, plus Garmin CHIRP DownVü™ and Garmin CHIRP SideVü™ sonar scanning for the clearest scanning images on the water. The images sent to your compatible Garmin chartplotter have target details so clear and precise, you can actually distinguish between small and closely spaced fish at key fishing depths all the way down to 5,000 feet.
CHIRP is the most sophisticated sonar technology available for use by the fishing and boating public. CHIRP is an acronym for Compressed High-Intensity Radiated Pulse. What it means to you is much better target resolution, clarity and crispness than any other sonar system. Having Garmin true dual 1 kW CHIRP as your traditional sonar allows you to adjust CHIRP frequencies to low/medium, low/high, medium/high to further optimize your sonar performance. Transducer sold separately.
Adding CHIRP technology to DownVü and SideVü scanning sonar further enhances the resolution, target separation and clarity of the sonar images of fish and structure that pass below and to the sides of your boat. Built-in to our new GPSMAP xsv combos and GSD 25 Premium Sonar Module, it uses 1 transducer for traditional CHIRP HD-ID sonar and CHIRP DownVü and SideVü scanning sonar. Transducer sold separately.
This new sonar is so unique we have developed our own proprietary transducers that are specially designed to work with our new sonar to provide the very best performance. See our Transducer Selection Guide to find a transducer that's right for you.
9.9"×7.6"×2.6" (251 mm × 192 mm × 66 mm)
1.7 lbs (0.77 kg)
From 5°F to 158°F (from -15°C to 70°C)
30 cm (11.8 in.)
Garmin Marine Network™ ports
Sonar Features & Specifications
Traditional: 50/200, 77/200, 83/200
Single Channel CHIRP: 40-250
Dual Channel CHIRP: 40-250
SideVü/DownVü: CHIRP 455/800 & CHIRP 260/455
(dependent on transducer)
Yes with CHIRP
5,000 ft. (1,524 m)
27 W maximum
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