1.Range:40~130dBA, 2.Frequency Range:31.5HZ~8.5KHZ 3.Time Weighting Selection:Fast/Slow 4.USB Port

Range30~130dBA35~130dBCAccuracy                                 ±1.5dBFrequency Range                    31.5HZ~8.5KHZ Linearity Range                        50dBAC/DC Output                         √Digit & Resolution                   5 Digit & 0.1dBTime Weighting Selection       Fast/SlowMicrophone                          1/2 Inch Electret Condense MicrophoneFrequency Weighting                A & CSound Measuring Level Selection    √Sampling Frequency                     2 times/sec USB transmission                          √