Digitales Schallpegelmessgerät Großbildanzeige Restaurant Bar/Büro SW525A
84,37 €
Audio Outlet: when there is an alarm with 2KHz Signal, it can drive the loudspeaker to alarm. Press " Button No.4 " to turn off alarm and the red light off;. Frequency Weighting:A (Ambient Noise) Weighting.
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