Epever Add on's which ones

Well after a month or so of working on many difference possible solutions and especially thanks to people on this site
I have now a hardware configuration that I will try and follow.

I plan on adding a Epever 2210An SOC with a 20Amp rating.
The next thing I would like assistance on, is in selecting the best add-on that will provide
diagnostics as well as being able to set the upper and lower disconnects when the voltage
goes either Higher or lower with MY custom setting.
From what I can see I have the option of adding a MT50 remote display.
Another two options appear to be a Wifi Converter Box for Wireless Monitoring and a Blue Tooth unit
It also appears that all three units require USB communication cable ( RS485 ).

OK with that out of the way please tell me what of these option is the best for me and function well.
Also please confirm that the USB communication cable ( RS485 ) will work with all three unit.

Thanks in advance for all of the assistance.

i have a 6415AN, MT50 and usb interface. I started with the controller and mt50, but both sucked for programming. MT50 is better than controller, but not by much. I then ordered the usb cable/software and dedicated a laptop with windows 10 pro so i could remote desktop to it (all the time). That has been good enough to program and monitor that I haven't felt the need to look further. Software is limited in data display to the last 30 minutes. It does display totals that help some, but comparing today to yesterday, last week, last month is impossible. At least with the dedicated laptop, i can manually record readings in a spreadsheet and be able to do better data analysis than the software allows. Logging and long term data analysis falls short in the software, but is almost nonexistent with the controller or MT50. I did have to modify the usb cable for it to work, but the instructions are online and it only involved reversing two wires in the ethernet plug. I cut it, rearranged and re-terminated with an rj45 and done.

there are a bunch of software screenshots of my system in the thread, Epever 6415AN doesn't respect my settings

Greetings All, well I started my day off with a bang no an explosion type but rather a purchasing explosion.
I ordered a set of 4- 202Ah deep cell LifePo4 cells and in addition I ordered a Trace 4215BN SOC. I went this route due to the
high recommendations put on the products by Will Prowse.
I will be adding a MT-50 meter c/w cable and use that as a starting point.
I would still appreciate input regarding the usability of the WiFi module and the Blue Tooth module. Please give me your thoughts on these two products and how they are working for you!

Highly recommend the remote temp sensor and MT50.

I bought the PC cable but couldn't make it work (too technical for me).

I have decided to hold off on the Wifi connection until after my basic setup is complete.
Thank you for you reply!