The big word shown for each zone. Leave a field blank to use the default.
Shifts the whole scale to match your phone. Play music at a level you'd call
"borderline," then use Set from now to pin the yellow line to it.
Stops the phone from sleeping while monitoring.
Hitting the red zone locks the screen on red until someone taps “Got it.”
A soft, repeating tone that keeps sounding until you acknowledge.
Readings are approximate and relative to your phone's mic — not a certified
sound-pressure meter. Tune the thresholds on-site until the colors match
what feels right. Audio never leaves the device.