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SOUND CALIBRATOR

Specification :
Standard : GB/T 15173, ANSI S1.40 Class2, IEC 942
Output Sound Level : 94 dB, 114 dB
Accuracy : 0.5 dB
Frequency : 1,000 Hz
Power Supply : 1 x 9V 6F22 Battery
Dimension / Weight : 142 x 47 x

Fungsi : untuk kalibrasi sound level meter

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