ST 40 to Tacktick
I had a B and G Hornet 40 system when I purchased the boat. Didn't work properly. Purchased a Tacktick system used the existing thru hull fitting for the dual transducer speed sending unit. Best purchase I have made for my boat yet. set up was almost flawless works great I have mounting brackets both on the helm and in the nav station just take the display wherever you need it. Solar everthing except the hull transmitter, the hull transmitter is still wireless to the display. Great system.