... -232 interface ouput are available 4.Impulse sound level FEATURESLatest Digital Signal Processing TechnologyWide Dynamic Range High PrecisionModular Design - on Demand SelectionWide ... of MeasurementLp, Lmax, LpeakLp, Lpeak, Lmax, Lmin, SEL, ELXYp, LXeq,T, LXYmax, LXYmin, LN (Note: X is A,C, Z; Y ...