Electronic sensors go bad sometimes.
It’s a fact of life.
If this happens to us and an automation system isn’t receiving accurate readings from sensors then this could cause major problems.
Imagine an automated kettle boiling water..
If a liquid level sensor fails to do it’s job then the system may “think” water exists when in actual fact the kettle is empty.
Or how about a failed temperature sensor in the kettle?
In these two scenarios, if the desired temperature is never reached then the kettle may continue to boil indefinitely!
Having multiple sensors could help to mitigate these kinds of problems.
This coupled with a notification function to alert you, the user that there’s a fault in the electronics.
Of course there could be a problem in the notification systems to!
Regularly performing system checks to help find these problems early may be a good idea to implement in a home automation system.