The device has a pulse meter (3) to provide an electric pulse or close an electric circuit at each predefined quantity of electric power, and a communication module (8) connected to the pulse meter to send electric power and/or consumed electric power information. The communication module comprises two inputs (10) to perform connection with the pulse meter and discrimination units (11) connected to the inputs to differentiate electric power pulse information and status information of an electric apparatus (1) connected to the inputs. An independent claim is also included for a method for metering electric power.
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