| Comments |
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Use to calibrate the " Sound Level meter " precisely.
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1000 Hz frequency .
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94 dB Sound Pressure Level
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Suitable for 0.5 & 1 inch microphone. Total harmonic distortion : 2 %.
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According IEC942, Class 2 Standard
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Power by 006P DC 9V battery, 2 PCs.
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Durable bench type housing case.
- Built-in over input protection.
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