Mine didn't work on Systemview. It was hard to swallow $300 for water temp. I called Airmar and got some details on which wires to test from the transducer and expected ohm readings. Everything tested out perfect. I checked all settings in system view and everything seemed correct. When I purchased my vesselview 7, I gave in and purchased a new transducer. I decided to try the vesselview 7 before swapping out the transducer and my temp now works perfect. Unfortunately, I opened the bag for the new transducer and was unable to return it. The one I have is depth speed and temp all in one. It will work with what you have, and I could make you a pretty good deal on it, but it may be slightly less straightforward than the simple swap of the correct unit.