Handheld Air Raid Siren, Aluminum Alloy Hand Crank Siren Horn 110±2dB Sound, Security Alarm Sirens for Home Office Industry Warehouse Self Protection (Red)

Specification:Name: Hand Crank Siren HornMaterial: Aluminum AlloyEffective Range: Φ≥1000mmSound Level: 110±2dBSound Frequency: 550±20Hz (depending on hand-crank speed)Rated Speed: ≥2000 r/minColour: Green, RedPackage Included:1 * Hand Crank Siren Horn

• 【Reliable Materials】The hand-crank alarm features a high-quality aluminum alloy housing, offering excellent impact resistance and corrosion resistance. It maintains stable performance under harsh environmental conditions such as heavy rain, high temperatures, and dust storms, ensuring a long service life
• 【Adjustable Volume】The portable hand-crank alarm allows users to control the speed and force of cranking to adjust the rhythm and volume of the alarm sound, meeting diverse warning needs across different scenarios
• 【Powerful Volume】The handheld air raid siren incorporates a high-powered sound generator capable of producing extremely loud alarm tones. Its sound carries over long distances, effectively covering large areas to ensure clear audibility and prompt response from personnel across expansive zones
• 【Easy Operation】Requiring no power source or complex energy support, the alarm activates solely by manually cranking the handle. Its simple, intuitive operation requires no specialized training, allowing anyone to quickly use it during emergencies
• 【Versatile Applications】The portable aluminum alloy handheld air raid siren is suitable not only for warning against natural disasters like fires, earthquakes, and floods, but also for alerting and warning in various emergencies such as industrial accidents, public safety incidents, and military drills. It serves as a universal emergency warning tool