Fire safety early warning device

The utility model relates to the technical field of fire-fighting early warning equipment, in particular to a fire-fighting safety early warning device which is provided with an annular body, N smoke sensors are arranged on the outer side of the annular body, and the N smoke sensors comprise one nor...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HE WEI, QIAN ZHENWEI, ZHANG YAN, LI CHENGTANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!