Hi all this is my first post of rtr, recently I acquired a good priced apex classic and decided to jump on the good deal. Bought a new probe connected everything up and the apex does not even register that it will work with a ph probe. My apex fusion does not even have an imput section and when I click on the probes that are available it only shows my temp as being something I can register. Any help would be appreciated, I cannot even reset without classic display screen, thank you.