Difference between revisions of "Aco Pacific model 521 specifications"
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| − | [[File:|thumb| | + | [[File:ACO_Pacific_model_521.png|thumb|ACO Pacific Model 521]] |
==Description== | ==Description== | ||
The ACO Pacific Model 521 is a Sound Level Calibrator. | The ACO Pacific Model 521 is a Sound Level Calibrator. | ||
*Frequency: 1000 Hz +/- 1%. | *Frequency: 1000 Hz +/- 1%. | ||
*Total harmonic distortion (THD): less than 2% | *Total harmonic distortion (THD): less than 2% | ||
