Applicable standards
IEC61672 class 1、GB/T3785 class 1
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Measuring range
25~130dBA
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Dynamic range
>110dB
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AD sample rate
48kHz
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Detection method
Full Digital
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Internal noise
22dB(A)、23dB(C)、27dB(Z)
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Measuring Frequency range
10Hz~20kHz
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Weighting filters
Frequency weighting: A, C, Z
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Time constants
Time Weighting: Slow, Fast
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Measuring parameters
Lp、Leq、Lmin、Lmax
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Octave analysis
0ct(1/1、1/3、1/6、1/12、1/24)
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Spectrum analysis
FFT Analysis
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