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Rivers, Port-Harcourt, 2 hours ago
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Manual Siren/Alarm
This is a heavy-duty, portable hand-operated manual siren designed for emergency signaling without needing a power source.It functions by manually turning a crank to engage internal gears, producing a sound level up to approximately 120-125 dB at 1 meter.
Safety tips
- Avoid paying in advance, even for delivery
- Meet with the seller at a safe public place
- Inspect the item and ensure it's exactly what you want
- Make sure that the packed item is the one you've inspected
- Only pay if you're satisfied
