Max, Min and Avg function is installed!
99% Satisfaction! Powerful Noise Meter.
※ Wide ragne 0~120dB(dBA)
※ Wide frequency :31.5hz~8.5khz
※ Max, Min, Avg Hold function
※ Error tolerance 土 1.5db
※ Quick use at any time
※ Wide measure range and easy to use!
★Some device might not recognize this app.
If you want more accurate(professional) measuring, please purchase professional noise meter.