Mine is a roundabout way via Home Assistant and then to MQTT where I can import it quite easily to Hubitat. Not a path to consider really, it just suits my system. Sonoff can't use MQTT directly but I believe the POWR3 could be flashed with Tasmota to achieve that if you wanted.
I haven't looked up the Sonoff integrations for Hubitat as to whether they support the POWR3 - it's relatively new. I seem to remember there are some Sonoff drivers but not sure if they access the EweLink cloud or the device locally (DIY2 rest protocol which this device supports). Anyone know ?
This is Sonoff Connect which I think does not require flashing the unit with Tasmota
If it's easy to setup and test I can do that for you with my POWR3.
Very pleased with the POWR3 - reasonably priced and tidy although a little bulky. WiFi of course bso you need coverage where you will be mounting it .Using it on my immersion heater too.
Screenshots from HA:
Ignore Todays Consumption
- I just messed it up