Our 50 Hz PAKITA Sirens
The alarm range you are looking for determines the choice of a siren.
PAKITA 50 Hz various models cover alarm ranges from 800 to 5500 meters. Consult our technical data sheets (FT) (pdf format) for each of these sirens.
These ranges may vary with the siren location and its environment. On the field, effective ranges have to be checked in order that all persons that have to be alerted hear properly the sound.