Aco Pacific model 521 specifications
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ACO Pacific Model 521
Description
The ACO Pacific Model 521 is a Sound Level Calibrator.
Frequency: 1000 Hz +/- 1%.
Total harmonic distortion (THD): less than 2%
accessories
Aco Pacific model 7012 Free Field microphone
Aco Pacific model 7013 Pressure Field microphone
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