Customizable Volume Control: The sound level is determined by how quickly you rotate the handle. Manual Emergency Alarm Air Raid Alarm Hand Crank Siren Aluminium Alloy 110dB Weather Resistant Tornado Siren Aluminum It’s ideal for situations where power is unavailable or unreliable, providing a reliable means of sounding an alarm in emergencies. 【Manual Operation for Versatile Use】This hand crank siren operates without the need for external power sources, making it ideal for emergency situations, power outages, or remote locations. Faster cranking generates a louder sound. 【Adjustable Sound Levels】The volume of the loud siren is controlled by the speed at which you rotate the handle. NATGAI Portable 110dB Hand Crank Air Raid Siren Features: Emergency-Ready & Easy to Use: This hand-cranked siren requires no electricity or batteries. 【Durable, Weather-Resistant Design】Built from high-quality aluminum alloy with a corrosion-resistant coating, this air raid siren is designed to withstand harsh conditions. It ensures that your emergency signal cuts through background noise to attract attention. 110DB Hand Crank Siren Horn Manual Emergency Alarm For Firefighting Flood Control | Lazada PH Goriertaly Hand Crank Siren Horn Portable 110dB Manual Operated Air Raid Emergency Safety Alarm... You can also press the built-in trigger to open the vanes and further amplify the sound. Tornado Siren, High Frequency Alarm Sound 110dB Adjustable Whether you're at home, at a sporting event, or on a hike, this portable device is ready for action whenever you need it., etc It can be conveniently stored in your car, home, or emergency kit, ensuring it’s always ready when needed.
