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Sound Level Meter Calibrator ND9-A/ND9-B
Standard: GB/T15173, ANSI S1.40 Class2, IEC942
Output Sound Level: 94dB & 114dB
Accuracy: 0.5dB (ND9-A); 0.3dB(ND9-B);
Frequency: 1000Hz+2.4%
Design For: 1", 1/2"
Power Supply: 1X9V 6F22 Battery
Dimension: 142X47X47mm
Weight (not including battery): 275g |
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