Air Raid Alarm Manual Hand Crank Siren 110dB Loud Adjustable Sound Aluminium Alloy Red Compact Portable No Power Required for Sports Events Emergency Attention
Manual Air Raid Alarm 110dB Loud Siren with Aluminium Alloy Build

This air raid alarm is a manually operated siren that produces a powerful, adjustable sound without any electrical power. It is designed for reliable use in emergencies, outdoor events, or sporting occasions where attention is needed. The hand-crank mechanism lets you control the volume by varying your rotation speed, and the compact aluminium construction makes it easy to carry and store. With a transmission distance of approximately 1000 metres, it covers a wide area effectively.
Features and Construction

The siren is built around a durable aluminium alloy body and a manual gearbox that amplifies sound through step-by-step acceleration.
Material and Build
The body is made from aluminium alloy, providing both strength and lightness for portability. The folding handle and cranking lever allow the device to be stowed compactly when not in use.
Size and Practical Fit
Measuring 115mm in length, 202mm in width, and 9.1 inches in height, the siren fits easily into a bag or glove compartment. Its small size does not compromise its loud output.
Uses and Placement

This siren is suitable for any situation where a loud, attention-grabbing sound is required, from emergency drills to sports events.
Event or Professional Use
At sporting events, the siren can be used to rally a crowd or signal important moments. Its manual operation means it works anywhere, even in locations without power.
Everyday Home Use
For home safety drills or outdoor activities like camping, the siren provides a reliable way to alert others to potential dangers.
Benefits and Buying Value

This siren offers practical advantages through its simplicity and durability, requiring no batteries or electricity.
Reuse and Low Maintenance
With no electronics, the siren requires minimal maintenance – just keep it dry and free from debris. The aluminium alloy resists corrosion, ensuring long-term use.
Why Choose This Product
Its manual crank operation means it is always ready to use, and the adjustable sound level lets you match the output to your needs. The compact, folding design makes it easy to take anywhere.