In the Device panel you can visualize a specific variables readings without returning to the dashboard. Choose any device and a variable to visualize more insights. 

By default, the values displayed correspond to the latest readings; however, by clicking the button containing the date displayed above the chart, you can customize the data displayed to a hour, day, week, or custom date.
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In this case, we wanted to display the data gathered from July 15, 2019 to July 19, 2019:
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