EPO vs EMS

[Newk]

I am upgrading to 50 amp 5er from 30 amp TT. So need a new EMS. Found some comments on here about Hughes. They have a Bluetooth model that is intriguing. Allows for remote monitoring. Seems have to buy an extra unit to make that happen though. So I have 2 questions:
1. What the call EPO, is that really EMS? Website seems to describe it as that.
2. Any experience with this Bluetooth model?

Thanks

[chuckster57]

EPO appears to be the same feature that an EMS does. Only difference I see is the EPO powers back on faster. I have no experience with the Bluetooth model or any other product from them