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Short description
Manually operated air-raid siren for air-raid or fire alarm.
Material
Aluminum
Beschreibung
The hand-operated air-raid siren is an energy-independent alarm and signaling device that used to be used for air-raid alarms or fire alarms. By slightly turning the crank, a howling sound is produced even at low rotation speed, which increases as the speed is increased. Various applications e.g. in schools, public buildings, tent camps, quarries, fire department, THW, on construction sites....
Details:
Mains-independent alarm and signal device made of aluminum.
Foldable handle.
Maximum volume with minimum effort.
Low weight and easy handling allow uncomplicated and fast transport.
Sound pressure level (1m): 100db +/- 2.
Sound frequency: 550 Hz +/- 20 HZ.
Dimensions: approx. 18.5 x 18.5 x 17 cm.
Dimensions (folded): 12.5 x 12.5 x 13 cm.
Siren diameter: approx. 115 mm.
Weight: approx. 1,200 g.
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