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Sonoff Pow R2 Connection


My question is how can I connect a sonoff pow r2, to control the consumption of an air conditioner. The mini split works at 220V, with two phases of 110V, that is to say without a neutral. From what I see in the specifications, it can be connected to an outlet between 90V and 250V, but indicates phase and neutral.

How can I connect it?

Thank you.

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