Click the View All button to navigate to the Meters list.
Depending on the reading date type you originally filtered by, you can view the following:
If you originally filtered by the Reading Date, you will see the total number of meters that had measurements created for the day you selected from the results list.
If you originally filtered by the Reading Ingestion Date, you will see the total number of meters for which measurement data was received by SAP Cloud for Energy on the day you selected from the results list.