SNDWAY großes LCD Geräuschpegelmessgerät Messung 30-130dB Rauschtester Show
71,42 €
The default alarm value s 130. Users can adjust it from 50 to 130dB. Press " Button No.4 " to turn off alarm and the red light off;. Frequency Weighting:A (Ambient Noise) Weighting. Audio Outlet: when there is an alarm with 2KHz Signal, it can drive the loudspeaker to alarm.
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