Building deep foundation pit harmful gas detecting alarm device

The utility model relates to a building deep foundation pit harmful gas detecting alarm device, which comprises a portable harmful gas detecting alarm device, an alarm device, a monitoring device and radio signal receiving, sending and transferring devices. The building deep foundation pit harmful d...

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Bibliographic Details
Main Authors CHEN CHONG, WEI HEGUANG, XIE SHOUYONG, WU DAKE
Format Patent
LanguageChinese
English
Published 04.08.2010
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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