Transducer question

[repawn]

Time for another ill informed question. I followed the cable from my depth gauge to this:



I have not been brave enough to open it yet. Curious I checked out the hull and found this:



Firstly, is this my transducer? Secondly, is there a way to ensure it is water tight without putting the boat in the water?

Thanks!

 

[agprice22]

That looks like your transducer. You could fill the hull with water from the inside and see if it leaks. I don't see how you would test it from outside. It is not usually necessary to cut a hole in the hull for the transducer. You usually just need to seal it to the inside of the hull.

Thanks,

Andrew