Trigger Notification if Device is on for certain amount of time

Configuration
1

This seems like it should be easy, but I am not getting it to work.
I have tried this a few ways, but below is how I have it setup right now, still not working.

I have a smart plug. I want automation to send me a notification if the plug has been on for over a certain amount of time. if it turns on, that is fine, but for example, if it is still on after 15 minutes, I get notifications.
In the screenshot I was testing it at 20 seconds, just so I can see if it was working.

How would I properly set this up?

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image1093×720 26.4 KB

2

I suggest you use a State Trigger.

alias: example
trigger:
  - platform: state
    entity_id: switch.your_plug
    from: 'off'
    to: 'on'
    for:
      seconds: 20
condition: []
action:
  - service: notify.your_phone
    data: 
      message: whatever you want to report goes here