
Alarm systems. Intrusion and hold-up systems. Intrusion detectors. Glass break detectors (passive)
出版:British Standards Institution

專家解讀視頻
Applies for passive surface mounted glass break detectors installed in buildings and provides for security grades 1 to 4, specific or non-specific wired or wire-free detectors and uses environmental classes I to IV.
? British Standards Institution 2013
CLC/TS 50131-2-7-2:2009 - Identical
CLC/TS 50131-2-7-2 : 2009 - Identical
CLC/TS 50131-2-7-2 : 2009 - Identical