YaeGarden Manual Crank Siren Crank Alarm Air Raid Sirens 110±2dB Base/Table Mount Hand Crank Manual Operated Metal Alarm/Siren (Air Raid)

Price: $31.46
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Availability: Not Available Discontinued
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Product Features

Can be used for factories, families, schools, military units, flood control, disaster relief, forest fire fighting munitions, public and industrial occasions By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on the rotation speed of the handle. Specifications: dB(A)1m 110±2. Rate HZ 550±20?Depending on the hand speed ?. Transmission distance ? 1000M. Material Aluminium. N.W 1.2KG. Dimension 186*1860*170mm. Warranty: Please feel free to contact us if you have any question about the item. We provide you one year warranty.

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