I have a brand new Standard Horizon CP180 chartplotter I need to sell. I bought it to use on the boat I have on order but decided to go with a 7" screen, and I am past my return period. It has an external GPS antenna. I am asking $400 including ground shipping anywhere in the United States. Since I am new to this site, you can use eBay as a reference. My user name there is the same as here, GJBenn85.