Victron MultiPlus-II 48/3000/35-50 120V

You'll also need

VE.Bus inverters have no Bluetooth on the unit itself. Add a Cerbo GX MK2 (and a Touch) plus an RJ45 UTP cable between the inverter and the Cerbo, or use a VE.Bus Smart dongle if you only want the Victron app.

Inverter/charger

The MultiPlus-II combines the functions of the MultiPlus and the MultiGrid.
It has all the features of the MultiPlus, plus an external current transformer option to implement PowerControl and PowerAssist and to optimize self-consumption with external current sensing (max. 32A). 
It also has all the features of the MultiGrid with built-in anti-islanding and an increasingly long list of country approvals.