Raymarine ES128 and Downvision sonar

[Seabbatical]

I have an ES128 and a ES98 MFD installed on my boat. I am having the ECT120 transducer installed while it is out of the water. Do I need to have a sonar module in order to get downvision capability?

From what I can decipher the downvision is built in to the MFD's, but I want to make sure I am reading this correctly.

[KeelMe]

The ES128 & ES98 both have CHIRP DownVision Sonar built in. You should be able to connect a CHIRP transducer to one of the MFD and be able to view the sonar on both MFD, if they are networked. I however am not familiar with the ECT120. Could it be the CPT120?

[Seabbatical]

Thank you- yes you are correct, it is the CPT120. Not even sure how I typed that wrong. Thank you again- I appreciate it.