Manual hand crank alarm made of durable aluminum alloy, portable and easy to operate without power—ideal for emergencies in remote or power-restricted areas.
Mannual Hand Siren Alarm
Description
- The hand crank alarm is small, lightweight, portable and easy to install. No tools are required. It only takes 0.15 square metres and a stand for one person to function properly, and is very mobile for operation.
- This hand crank alarm is made of durable aluminium alloy, it is not easy to rust and is durable.
- The hand crank alarm requires no power supply and can trigger an effective alarm in places where there is no power supply. The desired alarm effect is achieved by simply manually shaking the handle clockwise at a primary speed (50-80 revolutions per minute), producing a majestic sound with a great shock and long wavelength.
- When power and traffic are blocked, other mobile alarms cannot enter the alarm area, and the portable and practical hand crank alarm becomes a very practical alarm.
- Widely used in factories, schools, outdoor military warehouses, mountain rescue and anti-ship ships, ships, mines, plains, pastures, petrol stations, airports, forest farms, hotels, etc.
