1.Max Hold and Data Hold Function

2.Level Range:Low=30-100dB ,High=60-130dB

3.Accuracy :±1.5dB (ref 94dB @1kHz)

4.Frequency Range:31.5Hz to 8k Hz

5.Frequency Weighting: A,C

6.Time Weighting: Fast ,slow

7.Operation temperature:0 to 40℃(32 to 104oF)

8.Operation humidity:10 to 90%RH

9.Storage temperature: -10 to 60℃( 14 to 140 oF)

10.Storage humidity:10 to 75%RH

11.Auto power off