Hand Crank Siren
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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