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High Decibel Of Fixed Alarm , SY-200B Fire Hand Alarm
| Style | protable |
| Sound pressure level | 126 dB(A) @ 1m |
| Audio frequency | 600±20 Hz (depending on the hand-shaking speed) |
| Material | aluminum alloy (in addition to the stand frame) |
| Net weight | 7 kg |
| Effective range | 2000 meters in diameter |
| Packing size | 450*370*580 mm |
SY-200B is of high alarm frequency, strong penetrating sound power and large sound voerage. The characteristics of the SY-200B are convenient operation, energy saving, easy to carry, compact structure, small volume, light weight, etc.
1.Define
Alarms including hand alarm, electric alarm , each place for emergency warning, only hand alarm without power support, powered by turning a crank issued a warning signal effectively. Sound speed depends on the handle moved. Baffle the shutter mechanism is set in the sound window, can select the sound intensity signal, quickly closed the window, blocking, produce different signals.
2 . principle of working
Driven by turning a crank wheel at high speed, when the wheel turns, into the air from the side of the tuyere wheel, high speed and high pressure to set the wheel on absorption of air of resonance in the window of the base and at the same time.
3.Using range
Water conservancy, flood control, reservoir, civil defense, forces, fire control, prisons, mining, gas stations, ships, airport, plains, pasture, forest farms, factories, schools, hotels, hotel and open barracks, the mountain rescue the enterprises and institutions, etc.
4.Product features
Without the power support, compact structure, removable, light weight, easy to carry, sound intensity can be adjusted and produce different signals, low frequency, wide scope of application, etc.
Applicable occasions:
Used for emergency warning,easy to carry,mainly used in flood control,disaster,forest fire,military military supplies,public and industrial applications to respond to emergencies alarm use.
Due to lightweight the sirens can be easily transported to remote locations and folded up to a small size for ease of handling.