Hand Crank Siren
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The hand crank siren can produce an extremely loud alarm to alert those around you of danger. This fire safety device can help save lives by giving everyone a chance to get to safety while they wait for firefighters.
Features:
Style:Portable
Sound level dB(A): 1M 110±2
Output Frequency (HZ): 550±20
Transmission Distance: 1000m
Material: Aluminum Alloy
Net weight: 1.2kg
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