Hand Air Raid Siren 115dB Hand Loud Crank Manual Operated Portable Metal Alarm

Description

Product Description
Hand Air Raid Siren 115dB Hand Loud Crank Manual Operated Portable Metal Alarm
No power support, compact structure, easy to carry
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
Application
A wide range of applications, such as the advantages of long life.
Specification
Rate HZ 500±20;
Dimension 190*190*170mm
dB(A)1m 110±2
Rate HZ 500±20
Transmission distance Φ 1000M
Material Aluminum
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