Manual Hand Crank Air Raid Alarm – 110dB Portable Siren

Manual Hand Crank Air Raid Alarm – 110dB Portable Siren

Stay prepared and heard with the Manual Crank Air Raid Alarm Siren, built for high-volume alerts without the need for power. Constructed from durable aluminum alloy with a vibrant red ABS plastic housing, this hand-cranked siren produces an intense 110dB sound that can be heard over long distances—up to 1000 meters. It’s ideal for emergency alerts, crowd control, fire drills, and even sports events where attention-grabbing sound is essential.

Designed for portability and ease of use, the siren features a folding handle and cranking lever that compact neatly for transport. Operating purely on manual power, this alarm requires no batteries or external electricity, making it perfect for outdoor use, remote areas, and emergency preparedness kits. The audio frequency of 550±20 Hz delivers a universally recognized alarm tone that is both powerful and adjustable depending on cranking speed.

With dimensions of 115mm x 202mm and a height of 9.1", the siren is compact yet powerful. Its aluminum alloy build offers rugged durability, making it suitable for both indoor and outdoor environments. Whether you’re organizing a drill, managing a crowd, or cheering at a game, this portable 110dB air raid siren gets the job done with no setup or delay—just crank and alert.

Technical Specifications
Material: Aluminium alloy
Operation: manual hand lever operated
Color: Red
Sound output: 110±2(dB)
Audio frequency: 550±20(HZ)
Transmission distance: 1000(Φm)
Dimension
Length: 115mm/4.5"
Width: 202mm/8"
Height: 9.1"

Features and Benefits
Handle and Cranking Lever Folds.
 No Power Supply Required.
 Compact for Portability.
 Powerful Universally Recognized Sound.
 Manual Hand Crank Operated Air Raid Siren.
 Produces a loud adjustable sound of 110 decibels.
Made out of durable aluminium alloy.
 Ideal for getting peoples attention, or rooting for your favorite team in sporting events, and many more applications.
 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.

Notice
1. Please allow 1-3mm error due to manual measurement.Pls make sure you do not mind before you bid.
2. The color may have different as the difference display,pls understand.

Package Included
1 x Air Raid Alarm