Acoustic multiple tone sounder for an external acoustic alarm according to EN 54-3
conventional systems for the manual activation of an alarm and status display via LED according to EN 54-11.
Handfeuermelder in Grenzwerttechnik zur manuellen Auslösung eines Alarms nach EN 54-11
conventional systems for the manual activation of an alarm and status display via LED according to EN 54-11
manual activation of an alarm with bidirectional Isolator and status display via LED according to EN 54-11.
Acoustic multiple tone sounder for an acoustic alarm according to EN 54-3
direkten Einsatz in Lüftungskanälen, mit zwei optischen Sensoren und bidirektionalem Isolator nach EN 54-7 und EN 54-17
Company network of fire safety experts