SEN0204 non-contact liquid level sensor: detecting sensitivity level

I have the SEN0204 liquid level sensor, and I know I can adjust the sensitivity levels via “SET” button on the provided adapter board. What I can't seem to figure out, is if I can see what sensitivity level is selected. It appears that I can only guess at what the sensitiy level is, or is there a method I can use to reliably tell what sensitivity is selected?