The alert works fine for the most part, but sometimes it sends the 2, 5 and 15 minute alerts after the door is closed. For example, the door might close before 2 minutes, but all 3 alerts still fire or the door is closed after the 2 minute alert, but the 5 and 15 minute alerts are still sent.
As to not take credit, I copied this alert for someone else. I’m not tied to it, I really just want the alerts at those approximate time periods.