... 3.30 years experience TL6288B noise frequency channel analyzer / analysis meter1. integration, noise statistics, noise acquisition, noise frequency ... .5Hz,63Hz,125Hz,500Hz,1kHz,2kHz,4kHz,8kHzMeasured data automatic storage500 teams single team+50 teams filter+4 ... with printer and microcomputer communication to print measured data and frequency spectrum histogramSound calibration TL6020/6020A sound ...