Seems like the readings are made up. I downloaded it and tested it in the middle if the night with no noise at all and it was going back and fourth between 60, 70 and 90 in a completly silent room
4 people found this review helpful
easy to check when sound levels seem too loud, and if so, I then put in -20dB earplugs. Good for planes, movies, concerts, etc.
3 people found this review helpful