Each IoTaWatt installation consists of an IoTaWatt Base Unit with USB power supply, voltage reference transformer, and up to 14 current transformers to measure individual circuits.
The IoTaWatt Base Unit is not voltage or frequency specific, but the power supply and AC reference transformer must be appropriate for the local power system. We are working to source these items for 230V Euro plug. The USB power supply and AC adapter sold here are for 120V USA plug.
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