Newbie - Qusetions re Kodak 5.48 inverter communication

Hi everybody

I'm a complete newbie at solar ppower and have a system built round a Kodak OG5.48 off grid inverter. I initially started with the inverter and one Pylontech 3000c battery to ensure that we were able to weather load shedding. Now, a year later I have added another battery and have 8 x 550w solar panels to provide power during the day time. 

i am confused at to whether the unit has built in WiFi (per the online manuals) or not. If it has, how do I access the PN number and if not do I have to buy a wifi adapter. 

If I do what adapter will I need so that I can use the Watchpower app which now only seems to operate on WiFi 

The Bluetooth version is not available and the CD supplied is useless to me as none of my computers has a disc drive.

Any help will be greatly appreciated.

Peter