The high glucose limit sets the orange line at the top of the graph and CGM readings that are at or above this limit will display on the graph as orange dots. The low glucose limit sets the red line at the bottom of the graph and CGM reading that are at or below this limit will display on the graph as red dots.
The target glucose limit is the green shaded area on your graph and this is how TIR is calculated. Limits set within the t:connect mobile app are for reporting purposes only and do not dictate when you will receive alerts or alarms. Alert and alarm settings are set on your t:slim X2 insulin pump and should be reviewed with your healthcare provider.