Thanks crappie max,,, That is some of the stuff I need to know. the people I talked to at the factory outlet acted like they were in a hurry and were not able to tell me if the temp sensor was built in the transducer or if the unit even came with one.

I read about the different models and some said they came with a transducer and other models did not mention comming with one. They told me to call Lowrance and I did but the guy I talked to was in a hurry also and just kept stating the features and calling them by the short cut names and letters that I had no idea what they were. So I still keep trying to fugure out which one to get..