Rion Sound Calibrator NC-74
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Sound Calibrator
NC-74
Sound pressure level: 94 dB ± 0.3 dB
Frequency: 1000 Hz ± 2 %
For Type 1 and Type 2 sound level meters.
Sound Calibrator
NC-74
Sound pressure level: 94 dB ± 0.3 dB
Frequency: 1000 Hz ± 2 %
For Type 1 and Type 2 sound level meters.