The Adapter Plus is part of the MiHome home automation range. The A dapter Plus allows you to monitor the power being used by an attached appliance and switch the power on or off . The Mi|HomeA dapter Plus sends energy data information back to the Raspberry Pi using the Raspberry Pi transceiver board. This allows you to monitor how much energy each device is using. A dapter Plus can display the following:Time, Power, Reactive Power, Voltage and Frequency.