This is a old humminbird lcr 4000 portable fish finder, shows bottom depth and countour but its a early lcd version so it shows up as blocks, not boomerrangs. Runs of 2 6v or 1 12v battery.
The dive ladder is one that hooks over the transom of a boat.
Pick up for free in yorba linda or san pedro
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20201201_182726.jpg (129.18 KiB) Viewed 443 times