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GSD 25Garmin Fishfinder Module

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Garmin GSD 25 Fishfinder Module


2 years warranty


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The GSD 25 is a black box format sounder module that integrates all Garmin's know-how. It offers optimal fish detection capabilities and bottom monitoring. The GSD 25 operates in CHIRP Dual Channel 1kW mode, ClearVü CHIRP mode and SideVü CHIRP mode for clear and perfectly defined images of what is happening underwater. Compatible with Garmin displays from the GPSMAP 7400 and GPSMAP 8000 series, it allows you to clearly differentiate small targets or fish moving in tight schools up to 1,500 m

CHIRP Dual Channel 1kW

CHIRP technology is one of the most innovative depth sounder technologies on the market. It is aimed at all fishing enthusiasts as well as all boaters. With CHIRP "Compressed High-Intensity Radiated Pulse" technology, you benefit from improved target resolution and sharpness compared to any other traditional sonar unit. By choosing Garmin's CHIRP Dual Channel 1kW technology, you will be able to scan the seabed in different CHIRP frequency bands (low/medium, low/high, medium/high).
In the end, it's as if you had 2 probes simultaneously scanning what's happening underwater in different frequency bands (probe sold separately).

Scanning sounder

Complemented by CHIRP technology, Garmin's ClearVü and SideVü modes offer the ultimate in resolution, target discrimination, fish detection and underwater structures on both sides of your boat. Integrated with the new GPSMAP xsv series units and the GSD 25 sounder module, this technology now provides ClearVü CHIRP and SideVü CHIRP modes for optimal performance. These probes allow the CHIRP 2D sounder, ClearVü and SideVü modes to be displayed simultaneously through a single probe (probe sold separately).

ATTENTION: Supplied without probe


Physical dimensions : 251 mm × 192 mm × 66 mm
Supplied accessories : GSD 25, Power cable angled plug (1.8 meter), Power cable angled plug (1.8 meter, Mounting kit)
Maximum depth : 1 524 m
Supported frequencies : (Traditional) 50/200, 77/200, 83/200; (Single channel CHIRP)40-250; (Dual channel CHIRP) 40-250; (SideVü/ClearVü) CHIRP 455/800 & CHIRP 260/455
Serial compatible : GPSMAP 1022 to 1222xsv, GPSMAP 722 to 7412, GPSMAP 8008 MFD to 8424 MFD, GPSMAP 8500 Black Box to 8530 Black Box, GPSMAP922 to 922xs

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