Portable red hand-crank siren, 120DB manual alarm for schools and troops

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Discover our portable hand-cranked siren, a reliable and powerful alarm device that operates without any external power source. It's incredibly easy to use: simply turn the crank to activate the alarm and produce a piercing, high-pitched sound.

This hand-cranked siren emits an extremely loud signal, reaching up to **120 decibels** and clearly audible from a distance of approximately **400 meters (1/4 mile)**. The volume varies depending on how quickly you turn the crank, giving you direct control over the warning power.

Robust and built to last, its casing is made of **durable metal**, ensuring maximum strength and durability in various conditions. Despite its robust construction, it remains **compact and lightweight**, making it easy to carry, store, and use.

Its precise dimensions are as follows: **Width: approximately 14 cm (5.51 inches) / Height: approximately 23 cm (9.09 inches) / Depth: approximately 20.2 cm (7.95 inches)**. The delivered product measures approximately **11 cm (4.3 inches)** in width and **23 cm (9.1 inches)** in height.

Its ingenious internal mechanism, including a crank, speed multiplier mechanism, slider, wheels, and turbine, efficiently transforms manual movement into a powerful audible signal. It is available in two main styles: fixed or portable; the model shown here is the portable and detachable version.

Versatile, this crank-operated siren is useful in many contexts for providing a quick and effective alert: **factories, schools, military barracks, flood management, natural disasters, coast guard stations, civil defense**, and other emergency situations. It allows for timely alerts, thus helping to reduce property damage and risks to people. Your order includes: **1 x Manual Crank Siren**. Perfect for emergency preparedness, this reliable and independent tool is an essential safety choice.