Can a door sensor be “armed” all the time?

I have a multipurpose sensor that I want to put on a door but I need it to send me a notification whether my system is armed or not. Basically the same a a leak sensor does. Is that possible? I’ve looked through the settings but,soybean I am missing something.

Depends on the app you are using:

  1. classic app: setup a custom Smart Home Monitor rule
  2. new app: setup an automation with the custom automation creator