Volle Power - Probealarm einer Pneumatischen Hochleistungssirene

Sirenenprobe einer der letzten funktionsfähigen pneumatischen Hochleistungssirenen von PINTSCH BAMAG. Signal: Feueralarm Weiteres Video dieser Sirene:    • Sirene HLS PINTSCH BAMAG + E57 Feueralarm   German pneumatic siren from Pintsch Bamag with fire signal. Under the earth there are accumulators and a tank with compresed air. In case of an alarm a valve opens and the air is chopped by a small 24 volt motor at the top of the siren. A diesel engine refills the air tank and charges the accumulators. A few hundred of these high-power-sirens were set up in Germany during Cold War. They were able to operate autarkic but today the technology is very unreliable and expensive to maintain so today these sirens are very rare in Germany.