Shelly binding shelly pro 4pm - voltage problem


the graph show the voltage from 3 different device, graph is from openhab 3.4.1:

Shelly pro 4PM [binding]

Sonoff POW [tasmota+mqtt]

Lovato energy meter [modbus TCP slave]

The shelly is very different and give me also wrong power consumption and energy.

how to solve?

What is the firmware version of your shelly ?

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