Hand Crank Raid Siren

Product Description

Specification:
dB(A)1m 110±2
Rate HZ 500±20
Transmission distance Φ 1000M
Material Aluminium
N.W 1.2KG
Dimension 190*190*170mm

Operation steps:
1, Get the Alarm, and hold the handle with your left hand
2, Tighten the rocker arm alignment screw in a clockwise direction
3, With left index finger by the wind trigger, the right hand shaking the handle clockwise to making alarm

Features

• Rate HZ 500±20;Dimension 190*190*170mm
• No power support, compact structure, easy to carry
• A wide range of applications, such as the advantages of long life.
• The sound depends on the rotation speed of the handle.
• By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound

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