Thank you for this mod. I confused me aswell, but got used to it after many try and errors.
I would suggest the German version for it. Both (regular circuit connections and speaker) could be labeled with "Aktivieren wenn".
I am not sure if you use the term "alarm" in English more than just for "warn about a danger / alert". In German I only hear it for that reason. If you want to say it specifically for that, you could say "Alarmieren wenn", which translates to "alert when". With the speaker you could do more then just alerts, that's why I think both fits "Aktivieren wenn".