The default view presented is real-time, you can pinch or scroll to zoom in or out. Dragging to left or right changes the time frame.

The real-time view gives you the temperature data at the set frequency, typically 5 minutes. 

The main benefit of this solution is the current upto date info presented in this view.

You can flick between hourly and day view by clicking the buttons. The solid line is average for the duration and the shaded area the range.

the aggregate view presents a quick way to see long term trends to adjust equipment. A good example is the impact of seasons on the operating temperature of the monitored locations. 

Maintenance can be carried to adjust the temperatures lower or higher depending on which stage and helps save electricity.