Calibrators
Extech 407744 94dB Sound Calibrator
1kHz Professional Calibrator for 0.5" or 1.0" MicrophonesThis 1kHz, 94dB professional sound calibr..
Extech 407766 94/114dB Sound Calibrator
1kHz Professional Calibrator for 0.5" or 1.0" MicrophonesThis 1kHz 94/114dB professional sound cal..
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