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

   Basic function

Frequency Range40~130dBA40~130dBCAccuracy                                 ±1.5dBFrequency Range                    31.5HZ~8.5KHZ Linearity Range                        50dBAC/DC Output                         √Digit & Resolution                   4 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                          √