PCB Piezotronics 378A21 Random Incidence Microphone

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The PCB Piezotronics 378A21 Random Incidence Microphone is a perfectly made combination of microphone and preamplifier to measure environmental and cabin noise, along with room acoustics and white goods testing. The 378A21 maintains a flat response for diffuse field applications for accurate measurement even at the highest frequencies.

The 378A21 1/2" microphone also meets various standards for its measurements, including the IEC 61672 Class 1 compliant system. PCB Piezotronics 378A21 random incidence microphones cover a frequency range from 4 Hz to 25 kHz with a maximum amplitude of 150 dB.