Misuratore di Rumore Digitale 30-130dB Misuratore con Funzione di Registrazione Max Min

Sound Level Over Or Under Indicates: If The Display Displays "Under" Or "Over" Characters, The Sound Level Is Lower Than 30db Or Higher Than 130db. A Maximum Duration Of More Than 3 Seconds Is Recorded, With A Normal Test Sampling Rate Of 0.5 Seconds.

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