Garmin GPSMAP 531s Color NMEA chartplotter. Works perfectly, fully tested with guarantee. You will receive what you can see in the photos. Chartplotter with sonar option.
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For Garmin Striker & EchoMAP Series Fish Finder Connector 010-12199-04 Power Cable Quick Connect Adaptor 4-Pin 4Xdv Waterproof
Aliexpress UK
Erchang Sonar Fish Finder Wireless Echo Sounder Winter Fishing Fishfinder 0.8-90 Depth For Ice Fishing Finder
Aliexpress UK
Garmin Fishfinder 90 head unit only - no transducer or power cable. In working order, I upgraded as I couldn’t find a transducer online for this. This is used and has some small scratches on the surface, works perfect other wise
eBay
Gramin Fishfinder 80 + bracket. With Transducer.
eBay
The Garmin ECHOMAP UHD 92sv Map Plotter Navigation Depthgauge Fishfinder is a high-quality device specifically designed for fishing enthusiasts. Without the need for a transducer, this GPS unit allows users to accurately plot their course and identify fish with its depth gauge and fishfinder capabilities. With the trusted Garmin brand behind it, anglers can rely on this product to enhance their fishing experience with detailed mapping and reliable navigation features. CHEAPEST YOULL GET
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New Garmin fishfinder never used but has got a used stand fitted stand on boat to fit and ended up selling the boat and forgot to take it off years ago but full working order brand-new happy to answer any messages, thank you happy bidding 
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Garmin Echomap 45cv chart plotter fish finder with garmin transducer. Boxed up with all original accessories. Also included is a power extension cable with ip68 connectors.
eBay
A GARMIN FISHFINDER 100 VISUALLY IN GOOD CONDITION. THIS UNIT WAS WORKING UNTIL RECENTLY BUT NOW HAS HAZY LINES ACROSS THE SCREEN WHEN TURNED ON.
eBay