... meter equivalent sequent Leq, sound exposure level LAE, sound dose DL and instantaneous sound level LP on the basis of 10s ... (HS14423)2. Measuring Range: 35dB~130dB(A,C) ; DL: 0~999.9%3. Frequency Range: 20Hz~12.5kHz4. Frequency Weighting: A, C5 ... .Time Weighting: F(Fast), S(Slow)6.Auto- Measuring: Leq,LAE,DL ...