How to determine all possible state strings of a sensor

Configuration
1

How do I determine all possible state strings of a sensor? I am using the qnap sensor and I need to know what all of the possible strings are for the ‘status’ field.

Also, how do I trigger on a string not equal to a value? For instance, I want to trigger on the state not equal to ‘good’.

2

You can use the Template Trigger for this.

automation:
  trigger:
    platform: template
    value_template: "{% if not is_state('sensor.what_ever', 'good') %}true{% endif %}"

Don`t know the qnap sensor, but i think you have to try and see the states.

3

Thanks so much, this really helps.