BM4001 is an outdoor siren, designated for burglary, assault and fire protection alarm systems. Source of acoustic signal is high effectiveness of piezoelectric transducer.
M21R is an indoor siren, designed for burglary, assault and fire protection alarm systems. Source of acoustic signal is a highly effective piezoelectric transducer.
BM7003 is an outdoor siren, designed for burglary, assault and fire protection alarm systems. Source of acoustic signal is high effectiveness piezoelectric transducer.
