Unknown electronic device in bilge... Is it motor or out-drive related?

[PosessionSound26PC]

Was in my bilge today and remembered I had run across something last year that I didn't know was there previously and I don't know what its. While cleaning the bilge out, I noticed a black hockey-puck shape down at the bottom front of the bilge (furthest from the stern) and it has a wire that goes up into the harness and then... somewhere. It has no markings or screws, appears to be potted in, like with epoxy. The wire is coming apart at the connection to the device. What is it?

After googling a bit, it might be either something for the Lowrance depth meter/sonar? Also have an old Lowrance GPS unit it might tie into...?

 

[Mc Tool]

Was in my bilge today and remembered I had run across something last year that I didn't know was there previously and I don't know what its. While cleaning the bilge out, I noticed a black hockey-puck shape down at the bottom front of the bilge (furthest from the stern) and it has a wire that goes up into the harness and then... somewhere. It has no markings or screws, appears to be potted in, like with epoxy. The wire is coming apart at the connection to the device. What is it?View attachment 414306

After googling a bit, it might be either something for the Lowrance depth meter/sonar? Also have an old Lowrance GPS unit it might tie into...?

That was going to be my 1st guess........looks like a transducer ,tho I thought they were usually suck down.

 

[Scott Danforth]

It's a transducer that used to be glued to the hull

 

[PosessionSound26PC]

Ok, will have to trace the wire back and confirm it's for one of the Lowrance devices, then go to their manual and figure out how it's supposed to be attached. Thanks!

 

[alldodge]

Look for digital depth gauge

 

[Scott Danforth]

usually attached with clear, slow-set epoxy. the reason its slow set is to get the bubbles out.

 

[Chris1956]

Gee, I had a transducer in my bilge, that was in contact with the hull, via a strap. It was not glued to the hull. It was necessary for it to be wet to actually operate, so each spring I needed to put a cup of water in the bilge to get it wet. a small price I thought.

The key thing necessary for an in-hull transducer is for it to touch the hull in a place without voids, stringers and other items. It must mount to pure fiberglass to work.