The HELIX 5 DI comes stock with the transom mount XNT 9 DI T ...
You can exchange that transom mount xducer for the XTM 9 DI 25 T trolling motor puck ...
It has the same 2d and DI piezoes but with added shielding for possible RFI ...and it is the trolling motor housing style puck ...
Call HB before you open the mounting hardware bag to be eligible for the exchange program ...
What should I do if I need a transducer other than the transom mount included in the box of my Humminbird unit?
Rickie