... weighting 3.30 years experience TL6288B noise frequency channel analyzer / analysis meter1. integration, noise statistics, noise ... function7. basic configuration: main machine, printer(with rechargeable battery), microphone(TL14423), bracket, CD, fan cover, horologe ... calibrator Sound level: 94dB, 1kHzDisplay 54mm×42mm LCD digital display, analog watch handDisplay measuring mode, measuring time ...