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John, Engineer and electronic enthusiast for more than 12 years.
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I have a gpsmap 741xs without a transducer. I also have a

Customer Question

I have a gpsmap 741xs without a transducer. I also have a Garmin echo 100 with a 4 pin transducer. Is the an adapter that I can use the 4 pin on the 741?
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Russell H. replied 1 year ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

The answer to your question depends upon these points:

1. what (4-pin) transducer (by maker and model) are you using with the Garmin Echo 100 ?

2. (and/or:) what port on the Garmin Echo 100 is the 4-pin transducer hooked up to, please? or, what port type is it, or can you photograph the port and post the photo file to me?

With that info, I could answer your question. Use the Reply To Expert function to let me know. Thanks.