For 5 different warning programs:

• Fire alarm (signal 3 x 15 sec., 2 intervals each of 7 sec.)
• Siren checking (signal 15 sec., no frequency change)
• Air-raid pre-warning (signal 3 min., no frequency change)
• Air-raid alarm (signal 1 min., frequency going up and down)
• End of air-raid (signal 1 min., no frequency change)

Included control box for weekly check and (1 + 6) sections
Control Unit: 230 V, 50-60 Hz
Colour: light grey (RAL 7035)
Weight: 9.5 kg
It is possible to use several sirens with the same time with this control box. Incl. wiring diagram.