HB 788ci HD DI Transducer

I have had a 788 down imaging unit for about a year. I used it on my previous boat and damaged the original transducer, which broke completely off and was lost in the lake. I got a smaller aluminum boat and was looking to hook the unit up on it. Have been looking at different transducers and mounting options. Wondering which I should go with, preferably not plastic as they seem not to last with me. Also, would like to use while under outboard power. Any input is greatly appreciated.

You don’t have any options with the 788ci HD DI unit. The only transom mount transducer we have is the XNT-9-DI-T which is made of plastic.

Thats what I needed to know before I bought the wrong one. Appreciate the response