Applicable standards
IEC61672-1, GB/T3785-1
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Measurement Range
25~130dBA (Related to the microphone)
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Dynamic Range
≥110dB, without switch range
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Standard Microphone
CRY333
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AD Sampling Rate
48kHz
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Detection Method
Fully digital
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Background Noise (electrical signal)
19dB(A)、21dB(C)、27dB(Z)
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Frequency Range
10Hz~20kHz
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加权过滤器
频率加权：A、C、Z
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时间常数
时间加权：慢、快
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