Sound calibrator

  1. 42AB Sound Calibrator
    Sound pressure level: 114 dB
    Frequency: 1 kHz
    ANSI: S1.40
    IEC: 60942

    G.R.A.S. 42AB Sound Calibrator, Class 1

    The G.R.A.S. 42AB  Sound Calibrator is a small battery-operated precision microphone calibrator. The calibrator can be used directly on 1" microphones. Adapters for calibrating  1/2" (factory mounted), 1/4" and 1/8" microphones are included.

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