Sirens and flaslights for local alarming
Signalling devices are used for local alarming. A distinction is made between internal and external alarming. Internal alarming is used, i.e. when people are present in the monitored building. It is used solely to make people aware of a danger. External alarming is carried out using acoustic signaling devices (sirens) and visual signaling devices (strobe light). External alarming is used to contact the neighborhood or the general public.
Combination of siren and strobe
Local alarming via optical and/or acoustical signal
Indoor or outdoor usage