Waste of money – Decibel Meter Pro Review

Tried to calibrate it to my trusty radio shack SPL meter and it wouldn't read a 65 db constant tone, even with the calibration slider turned all the way up. I also don't like that you can't switch the max, avg, and peak readings to the larger number in the center. Why did I waste my money on this??
Review by tknice on Decibel Meter Pro.