Overpower cutoff

Which devices do I need to cut power on an appliance upon detecting overpower on another appliance? Can Sonoffs communicate each other?
Is there any power measurement device able to produce acoustic alert upon overpower detection?

Maybe Sonoff Pow Elite can meet your needs:

POW Elite - SONOFF Official

Using OPS feature of POW series products to monitor the overload of appliance 1, and set a scene like when POW device off, turn on/off another smart device.

Can you provide a link or any detail?

Check this, eWeLink app feature: Overload Protection System settings #smarthome #shorts - YouTube