Sound Level Calibrator ND9A ND9B

Details:
Model:A
Standards:GB/T15173, ANSI S1.40 CLASS2, IEC942
Sound Pressure Level:94dB/114dB
Accuracy:0.5dB

Model:B
Standards:GB/T15173, ANSI S1.40 CLASS1, IEC942
Sound Pressure Level:94dB/114dB
Accuracy:0.3dB

Guangzhou Landtek Instruments Co Ltd is the manufacturer of measuring instruments in China over 20 years.

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