Wireless alarm

The utility model discloses a wireless alarm. Running along an alarm track, the alarm comprises an alarm body, a battery and a signal transmitting device are arranged in the alarm body; wherein the alarm body comprises a loudspeaking part arranged on the side surface of the alarm body and a light-em...

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Bibliographic Details
Main Author XIANG QINGSONG
Format Patent
LanguageChinese
English
Published 24.09.2019
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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