Portable Manual HandCrank Alarm Siren Key Features and Benefits: Simple HandCrank Operation: Designed for quick and straightforward use. Just turn the handle to activate a powerful alarm signal whenever needed, without reliance on batteries or electricity. Volume Sound Output: Produces a clear, attentiongrabbing alarm at up to 120 dB, easily audible from up to 1/4 mile away. Ensures immediate awareness across large areas. Rugged Metal Construction: Built with a sturdy metal housing that offers exceptional strength and longlasting durability, even in demanding environments. Wide Range of Applications: Suitable for factories, schools, military units, disaster relief operations, and coastal security. An effective solution for delivering timely warnings in emergencies, drills, or hazard situations. Performance and Practical Use Scenarios: 1. Emergency Evacuation in Industrial Facilities: Alerts workers across expansive production areas to evacuate quickly during fires, chemical leaks, or other hazards. 2. Disaster Response in Remote Areas: Provides dependable alerts where electronic communication systems are unavailable or compromised, such as during storms or earthquakes. 3. Coastal Patrol and Security: Assists seaside guards in signaling warnings to nearby personnel or vessels when hazardous conditions arise. Specifications: Operation: Manual handcrank Maximum Sound Level: 120 dB Audible Range: Up to 1/4 mile Housing Material: Heavyduty metal Portability: Compact and lightweight for convenient carrying and use in various locations This manual alarm siren delivers reliable performance, durable build quality, and versatile functionality, making it an essential warning tool in professional, educational, and emergency environments.