I had two 4000's but there not I.D.'s,They were good while they last. But got to going crazy.I sent one back ,It worked a while Then Quit!
Got another from Ebay about the same in a year! I may have the trancducers somewhere, If you will pay the freight I'll give them to ya. No warrente They work? I think it was a trowling motor mount?
Rowdy