Using the Min and Max Markers

View Menu > Graph View > Set as Start, End Markers > Using the Min and Max Markers

The minimum and maximum markers displayed on the graph indicate the extremes of the temperature between the start and end samples If you have just read a logger or file, the start and end markers are set to the first and last samples, so the minimum and maximum pertain to the whole sample record.  If you move the start or end markers, the minimum and maximum positions will be recalculated and displayed.

The sample corresponding to the maximum temperature  is marked on the graph with the flag symbol.  The minimum sample is marked on the graph with the flag symbol.  You can position the graph sample cursor at the minimum value with the View/Go To/Minimum, function or by pressing F5.  You can position the graph sample cursor at the maximum value with the View/Go To/Maximum, function or by pressing F6.

The behaviour of these functions changes somewhat when both temperature and humidity traces are displayed.  If the cursor is not currently positioned at a minimum temperature or humidity sample, then the Go to Min.function moves the cursor to minimum temperature sample.  If the cursor is already on the minimum temperature sample then the Go To Min function moves it to the minimum humidity sample.  If the cursor is already on the minimum humidity sample then the Go To Min function moves it to the minimum temperature sample.  Equivalent behaviour exists for the Go To Max function.