Digital Schallpegeltester Messgerät Geräusch Messgerät mit Bereich 30-130dBA Genauigkeit ±1,5
215,51 €
The amplifier adds the output signal to the weighting network, and the signal is frequency weighted (or external filter), then the signal is amplified to a certain amplitude by the attenuator and amplifier, and finally the corresponding value is displayed on the LCD after being processed by the digital circuit processor.
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