NICCOO Hand Crank Alarm Handheld Air Raid Siren Manual Siren Horn Loud Portable Fire Emergency Safety Alarm 110dB Red

⭐【Easy Operation】The hand crank alarm is small, lightweight, portable and easy to install. No tools are required. It only needs 0.15 square meters and a stand for one person to work properly, and is very portable for operation. ⭐【No Power Required】The hand crank alarm requires no power supply and can provide an effective alarm in places where there is no power supply. Perfect for emergency situations where immediate attention is crucial. ⭐【Hand-Cranked】The desired alarm effect is achieved by simply manually shaking the handle clockwise at a primary speed (50-80 rpm), producing a majestic sound with a large shock and long wavelength. ⭐【Practical&Convenience】When power and traffic are blocked, other mobile alarms can not enter the alarm area, and the portable and practical hand crank alarm becomes a very practical alarm. ⭐【Wide Appilcation】Widely used in factories, schools, open-air military camps, mountain rescue and anti-ship vessels, ships, mines, plains, pastures, gas stations, airports, forest farms, hotels, etc. When power and communication fail, this portable alarm is a reliable solution., Weight: 2.314853751 pounds, Manufacturer: NICCOO