The Shelly Pro EM-50A is a DIN-mounted single-phase energy meter with an integrated switch for relay control. With an accuracy of 1% in measuring active energy, the Shelly Pro EM-50 can be used to monitor consumption and control various household appliances, circuits, and office devices. The device features a data history of 60 days in 1-minute intervals. Additionally, its scripting capabilities allow for the execution of complex scenes and provide more comprehensive monitoring options.