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Apparently these things are getting standardized: "BS EN 50131-8:2009" Alarm systems. Intrusion and hold-up systems. Security fog device/systems And are suppo

by Murkin 16y ago

Apparently these things are getting standardized: "BS EN 50131-8:2009" Alarm systems. Intrusion and hold-up systems. Security fog device/systems And are supposed to be installed in a way that prevents "man traps".