Yes, Powersensor's Essential Solar solution can be used with multiple-inverter, single-phase sites. It provides monitoring of your home’s imported and exported energy but it will not provide whole-of-house consumption and gross solar production data.
The Advanced Solar solution does not presently support multiple inverters, although, this is on the Powersensor roadmap. Should you wish Powersensor to prioritise multiple inverter support, please let us know here.
Get your hands on Powersensor
Find out where to buy here.