Review on 🔊 Professional 30DB-130DB Backlight Measuring Instrument: Accurate Sound Level Monitor by Chris Lapan

Works well as a standalone meter with one exception, it does not stay on after 10 minutes. The tiny, almost useless manual said that if it was on when you pressed the F/S button, it would stay on with no auto-off, but that's not the case. I bought it because of the data logging function. I installed the program without any problems. Then he made the first track in turn. After that the computer said the meter was not connected. Lost half an hour trying again and again.