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Display Refresh Rate
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One time per second
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Major Applicable Standards
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IEC 61672-1：2002 Class1
IEC60651:1979 TYPE 1
IEC60804:2000 TYPE 1
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Microphone
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High sensitivity,
½"pre-polarized capacitor microphone 50 mV/Pa
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Measurement Items
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Lxyp,Lxmax,Lxmin,Lxeq,LAE,Lcpeak
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Measurement Range
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30dB ~ 130dB (A)
35dB ~ 130dB (C)
40dB ~ 130dB (Z
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Dynamic range
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60 dB
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Measurement shift
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30dB ~ 90dB (L)
50dB ~ 110dB (M)
70dB ~ 130dB (H)
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Integrate Time Setup
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Manual, 10s, 1m, 5m, 10m , 30m,
1h, 8h, 16h, 24h
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Micro SD Card
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The max support capacity of
micro SD card is 32GB；
37,000 data about story space 300KB
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Peak value
measurement range
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70~133 dBC
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Time Weighting
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Fast, Slow, Impulse, Peak
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Frequency Weighting
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A/C/Z
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Frequency Range
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20Hz~16KHz
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DC Output
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10mV/1dB
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AC Output
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1Vrms(±10%)/130dB each range
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Starting Time
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＜10 Second
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Thermal noise
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≦28dBA
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