Hand Crank Siren Horn Manual Warning Alarm For School Shopping Fire Air Safety

Description: Battery-free Portable Hand Crank Siren Alarm, High-decibel Reliable Emergency Alert Device for Disaster Rescue, Evacuation Drills and Outdoor Safety Scenarios Features: 1. Power-independent Operation: All-mechanical gear transmission structure, no battery or external power supply required, generates alert sound only via manual cranking. It works normally in power outage, remote mountain areas or disaster-hit regions, eliminating failure risk caused by dead power supply for stable emergency use. 2. Ultra-high Decibel Alert Performance: Premium rust-proof aluminum alloy sound turbine and sealed sound cavity, delivers up to 120dB penetrating alarm sound with 1km maximum transmission range in open areas. It ensures all people within the warning range can clearly receive alert signals even in noisy environments, effectively improving evacuation efficiency. 3. Durable Anti-corrosion Construction: Thickened high-strength ABS or aluminum alloy shell + anti-rust coated internal metal components, features shock resistance, splash resistance and corrosion resistance. It withstands accidental drops and harsh outdoor weather, supports long-term storage as emergency reserve with extended service life. 4. Ergonomic Labor-saving Design: Non-slip frosted rubber handle with ergonomic curvature, fits palm perfectly to reduce hand fatigue during continuous cranking. The lightweight compact structure (minimum 0.6kg net weight) allows easy carrying to different sites or storage in emergency kits without taking extra space. 5. Zero Maintenance & Easy Operation: Fully enclosed precision gear system without complex electronic components, no regular charging, repair or complicated maintenance required. Even inexperienced users can operate it proficiently within seconds, very suitable for public emergency preparedness for all age groups. Specifications: Category: Emergency Safety Alert Device Material: Rust-proof aluminum alloy sound assembly, high-strength ABS/aluminum alloy housing, non-slip rubber handle Size: Approx. 18.6 * 18.6 * 17 cm (portable handheld model) Color: Green, Bright Red Application: Fire evacuation drills, flood warning, earthquake rescue, forest fire alert, mining site safety, community emergency response, outdoor camping safety, military field alert Quantity : 1 Piece per package Note: 1. Please allow differences due to manual measurement, thanks. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.