LK-100 Hand Operated Siren The LK-100 hand-operated siren is a highly efficient mechanical alarm device designed to emit powerful warning signals in locations requiring rapid alerts without the need for an electrical power source. It features a durable construction made from environmentally resistant aluminum alloy, making it suitable for outdoor use and harsh conditions. The siren operates by turning the manual handle to generate a loud warning sound of up to 110 decibels, with an audible range of up to 1000 meters in open areas, helping to quickly alert workers and visitors during emergencies or evacuations. Technical Specifications Model: LK-100 Type: Hand-operated siren Material: Aluminum Alloy Sound Level: 110±2 decibels Frequency: 500±20 Hz Audible Range: Up to 1000 meters Net Weight: 1.2 kg Country of Origin: China Features ✔ No electricity or batteries required. ✔ Lightweight and easy to carry and move. ✔ Loud and effective warning sound in emergencies. ✔ Suitable for field use and remote locations. ✔ Strong and durable body resistant to heavy use. ✔ Easy to operate and maintain. Uses Construction sites and projects. Factories and warehouses. Civil defense and emergencies. Camps and campgrounds. Mountain rescue operations. Ports and coast guard. Quarries and mining sites. Assembly and evacuation points. Keywords: hand operated siren, emergency siren, manual alarm device, civil defense siren, evacuation siren, rescue siren, work site siren, loud warning siren, safety equipment, occupational safety tools, construction site siren, factory emergency siren, camp siren, Hand Operated Siren LK-100.