Re: 7 pin transducer on my boat , What meter do I need?
Not knowing who made the transducer we have no idea what locator you need. These plugs are not universal and neither are the transducers except in the case of Eagle/Lowrance lines. 7 Pins is only one part of the equation. Shape of the plug determines what it plugs into. Go to Cabelas, Bass Pro, or any store that sells locators and look at the transducers and plugs. When you find a match, go to e-bay for the head unit. Or buy an entire unit and simply replace the transducer with the proper one. Seal the two holes and move on with your life.