Noise alarm device

The utility model discloses a noise alarm device, including alarm and microphone, be equipped with the alarm lamp on the alarm, the alarm with the microphone passes through the wire and realizes the electricity connection, still be equipped with the amplifier on the alarm, the amplifier has three in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XIE JINGYUAN, CAI XUELUN, DENG ZIHENG, YAO YUZHEN, CHEN WEIFENG, LIN LIXIA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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