Hand Crank Siren Horn, Aluminum Alloy Portable Loud Emergency Safety Alarm with 110dB Sound for Factories Schools Oil Depots

[Easy to Use and Portable] Designed for convenience, this lightweight and compact siren can be easily carried and operated by anyone. the hand crank mechanism allows for adjustable sound intensity—crank ​ for a louder alarm or engage the Actuator​ for an immediate alert. [Versatile Safety Solution] Suitable for a wide range of applications, including flood control, military use, and natural disaster preparedness. this siren provides timely warnings to minimize casualties and prevent property damage, making it an essential tool for emergency preparedness kits. [Powerful Emergency Alert] Experience unparalleled safety with our hand crank siren horn, delivering a piercing sound up to 110 decibels that can be heard up to 0.62 miles away. perfect for emergencies in factories, schools, and oil depots, this device ensures your alerts are heard loud and clear, even in chaotic environments. [Durable Aluminum Alloy Construction] Built to last, our siren is crafted from aluminum alloy and coated with rustproof paint. it withstands harsh weather conditions and rough handling, ensuring long-term durability and reliability in any emergency situation. [No Electricity Required] This manual hand crank siren operates without batteries or electricity, making it ideal for power outages or remote locations. simply crank the handle to generate a loud, continuous alarm, providing reliable performance when you need it most. Spec: Item Type: Hand Crank Siren Horn Effective Range: Diameter ≥ Approx. 1000m / 3280.84ft Sound Level: 110±2dB Sound Frequency: 550±20 Hz (Depends on the hand crank speed) Rated Rotational Speed: ≥2000 r/min Main Material: Aluminum Alloy Hand Crank Direction: Clockwise Application: for Engineering, Schools, Military, Flood Control, Nature Disaster Emergency Sites Package List: 1 x Hand Crank Siren Horn How To Use: Directly install and use

• [Easy to Use and Portable] Designed for convenience, this lightweight and compact siren can be easily carried and operated by anyone. the hand crank mechanism allows for adjustable sound intensity—crank for a louder alarm or engage the Actuator for an immediate alert.
• [Versatile Safety Solution] Suitable for a wide range of applications, including flood control, military use, and natural disaster preparedness. this siren provides timely warnings to minimize casualties and prevent property damage, making it an essential tool for emergency preparedness kits.
• [Powerful Emergency Alert] Experience unparalleled safety with our hand crank siren horn, delivering a piercing sound up to 110 decibels that can be heard up to 0.62 miles away. perfect for emergencies in factories, schools, and oil depots, this device ensures your alerts are heard loud and clear, even in chaotic environments.
• [Durable Aluminum Alloy Construction] Built to last, our siren is crafted from aluminum alloy and coated with rustproof paint. it withstands harsh weather conditions and rough handling, ensuring long-term durability and reliability in any emergency situation.
• [No Electricity Required] This manual hand crank siren operates without batteries or electricity, making it ideal for power outages or remote locations. simply crank the handle to generate a loud, continuous alarm, providing reliable performance when you need it most.