Feature(may vary by option.)

●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 (2000 revolutions per minute), producing a majestic sound with a great shock and long wavelength.
●Widely used in factories, schools, outdoor military warehouses, mountain rescue and anti-ship ships, ships, mines, plains, pastures, gas stations, airports, forest farms, hotels, etc
●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.
●The SY-200 hand-operated siren has a high frequency, strong sound penetration, a long range, is easy to use, labour-saving, easy to store, easy to carry, can be attached, has a compact structure, a small volume and a light weight.
●By manually rotating the handle, the gear of the gear step by step acceleration to achieve the purpose of the sound, the sound depends on the speed of the handle.

[Sy-200a & Red]

[Lk-120 & Green]

[Lk-100a & Green]

[Lk-100a & Red]

[Sy-200a & Green]

Description

Specifications:
Type: SY-200A hand siren.
Material: aluminium alloy.
Operation: manual hand lever operation.
Colour: red.
Sound output: 120 ± 2 (dB).
Audio frequency: 600 ± 20 (HZ).
Transmission distance: 2000 (Φm)
Height: 36 cm.
Package size: 37 x 23.5 x 22 cm.
Package weight: 4.3 kg.

Box contents:
1 x hand siren