... fast and slow time weighting5. Max hold function6. automatic measuring function7. basic configuration: main machine, printer(with rechargeable battery), ... TL6020/6020A sound level calibrator Sound level: 94dB, 1kHzDisplay 54mm×42mm LCD digital display, analog watch handDisplay measuring mode, measuring time, clock ... ×81mm×31mmWeight 0.4kg , printer: 0.41kg digital sound frequency analysis meter