Qwork Hand Crank Siren Horn - Loud Emergency Safety Manual Siren, Portable Green Alarm

The Qwork Hand Crank Siren Horn is a robust and portable emergency safety device designed for effective alerting in various situations. Constructed from durable aluminum alloy and coated with anti-rust paint, this siren is built to withstand the elements while remaining lightweight and easy to carry. With a maximum volume of 110 decibels and a sound transmission range of 0.62 miles, it ensures that your alarm will be heard clearly. The volume can be adjusted based on the speed of the crank, allowing for customizable sound levels. Ideal for use in factories, schools, and during disaster relief efforts, this manual siren requires no power source, making it a reliable choice for emergencies. • Sturdy and durable aluminum alloy construction • Loud alarm with 110db volume, effective up to 0.62 miles • Manual operation, no installation required • Volume adjustable based on crank speed • Suitable for various emergency situations including factories and schools