Just picked up a used Humminbird Helix off eBay and this was packed in the box with it. I don’t believe it goes with the unit as my other unit did not come with one.
Looks like a temperature probe of some sort, however it doesn’t seem to have any way of plugging in. It is about 3ft long, with a very soft rubber casing and you can feel wires inside. The one end has a hard plastic head, the other end has the rubber casing sealed. No markings of any kind.
Anyone have an idea?!
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