Lowrance replacement transducer --- pins on connector are different?

[coores14]

Hey all, I recently had to replace the transducer on my Lowrance LMS-337CDF. The transducer is model HST-DFSBL. When I went to install the new one, I noticed that the new one was missing two pins in the connector that goes to the back of the 337. The old one had the pins, the new one didn't. Yet they are the same model. Anyone have any explanation? Just an updated version? What am I missing?

[yachtjim]

You sure the fist one was a HS"T" and not just a HS? Sounds like you are seeing the temp pins. Doesn't matter anyway, the one you have now is the one you need.

[coores14]

yeah, i hear ya. but the old one gave me temp and the new one gives me temp. dunno. either way, the new one works.