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一级及二级声级计--塞那斯
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All versions of the CR:260 Series provide the following measurements:

> Sound Level dB(A)
> Equivalent Continuous Sound Level (LAeq)
> Peak Sound Pressure (LCPeak)
> Maximum Sound Level (LAFmax)
> Minimum Sound Level (LAFmin)
> Class 1 or Class 2 Performance to IEC 61672 as well as IEC 60651 , IEC 60804 standards as well as ANSI S1.4 and S1.43.

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