Feature
●Hand crank siren: when power and traffic are blocked, or ideal for attracting peoples attention in camps, schools, other mobile alarms cannot enter the alarm area, and the portable and practical hand crank alarm becomes a very practical alarm.
●Powerful sound: This hand-operated, lightweight siren produces a loud, adjustable sound of 110 ± 2 dB strong, 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 large shock and long wavelength.
●Portable and easy to use: 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.
●No power supply required: the hand crank alarm requires no power supply and can trigger an effective alarm in places where there is no power supply.
●Wide application: the hand crank alarm widely used in factories, schools, outdoor military warehouses, mountain rescue and ship defence ships, ships, mines, plains, pastures, petrol stations, airports, forest farms, hotels, etc.
Description
Hand crank siren: when power and traffic are blocked, or ideal for attracting peoples attention in camps, schools, other mobile alarms cannot enter the alarm area, and the portable and practical hand crank alarm becomes a very practical alarm.
Decibel of the siren: provides an effective alarm signal by shaking the handle to provide power. The volume depends on the speed at which the handle is shaken.
The hand alarm is lightweight, portable and foldable. When you turn the handshake lever, an alarm signal is triggered. The volume depends on the rotation speed of the lever.
Corrosion protection material: aluminium alloy material, corrosion-resistant, explosion-proof and waterproof, durable, less failure rate, more convenient to use.
Excellent choice:
Package includes: 1 x hand siren
Wide range of uses: The hand crank alarm widely used in factories, schools, outdoor military warehouses, mountain rescue and ship defence ships, ships, mines, plains, pastures, petrol stations, airports, forest farms, hotels, etc.