REALLY need an alert when sensor is removed from system

I had a door sensor disappear completely my app. No notification.This is a big flaw in the system design. In this case, the sensor was somehow removed from the system - but no one took the cover off or pushed any buttons or did anything on the app to remove it. It just reset and then was no longer monitored because it didn't exist. Anyone could have broken in to that door and there would be no alarm.1. There needs to be a BIG ALERT / EMAIL / Pop-up Notification any time a sensor is removed from the systemIt should be something that the user has to acknowledge - and and an email should be sent as well. That way if someone accidentally removes a sensor, or pushes a button that removes it (or in this case - no one did anything to remove it), there is some record and alert that a door or other monitored point is now vulnerable. It's not enough to just log its removal. The log is buried in thousands of open/close logs. I only found out this particular sensor was removed because the alarm didn't go off when I opened a door the next day. In my case it was only a day before I discovered. But in my typical use of the system it could have been months or even never been noticed.