|Place of Origin||Botou,hebei,china|
|Model Number||SY-200A Hand Operated Siren|
|Sound level dB(A) 1M||126dB(A)@1m|
|Output Frequency (HZ)||600±20|
|Color||As picture color|
|Packaging Details||Carton package or as your requirement for Hand Operated Siren|
|Usage||Alarm device,Civil defence siren|
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.
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.
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
Hand operated sirenSY-200A is designed to provide effective warning in applications where there is no power supply.
Powered by rotation the handle,this model has a plate to shut off the sound once up to speed giving it the ability to produce different tones
Robust and compact,the siren can be easily transported to remote locations and folds up to a small size for ease of handling
600±20Hz (Dependent on Rotation Speed)
Sound range: 2000M
no power supply required
robust and compact for portability
powerful low frequency sound
universally recognised signal
Shutter mechanism to provide a choice of signals:continuous and warble
Camp site,civil defence,mountain rescue,coast guard warning,quarries/mining