... .5Hz,63Hz,125Hz,500Hz,1kHz,2kHz,4kHz,8kHzMeasured data automatic storage500 teams single team+50 teams filter+4 ... connected with printer and microcomputer communication to print measured data and frequency spectrum histogramSound calibration TL6020/6020A sound ... level calibrator Sound level: 94dB, 1kHzDisplay 54mm×42mm LCD digital display, analog watch handDisplay measuring mode, measuring time, clock ...