... 61672 Class 1 2.Accurate testing results 3.RS-232 interface ouput are available 4.Impulse sound level FEATURESLatest Digital Signal ... functionMicrophoneAWA14425AWA14423 AWA14411AWA14435AWA14425Sensitivity—30dB —28dB—25dB—53dB—30dBFrequency WeightingA, C, ZTimeWeightingF, S, I, PeakFrequency Range10 Hz ~ 16 kHz10 Hz ~ 20 ... X is A,C, Z; Y is F, S, I; N can be 1—99) SEL, Lex,8h, Lavg, TWA, DOSE ...