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(19-651)HB
Depth of Wells
Measuring Limits of Tube(Steel):
Objective Focus: 31
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Graigar ND9B Sound Level Noise Calibrator Meter Mics 94dB/114dB Accuracy Mics Accessories (19-651)HBBrand: Graigar Color: Black Features: ND9B Sound Level Calibrator employs solid state integrated circuitry that provides accurate and stable performance. Suitable for field and laboratory use. Sensitivity calibration of 1" and 1 2" microphones. Meet the standards GB T15173, ANSI S1. 40 CLASS2, IEC942. Handy sound source for quick and easy calibration of sound level meters and sound measuring systems. model number: ND9B Part Number: ND9B Details:
US$ 18.00
US$ 11.00
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US$ 40.00
