Dh-200A Alarm High-Power Transmission 3km Explosion-Proof Electric Motor Siren 220V

Dh-200A Alarm High-Power Transmission 3km Explosion-Proof Electric Motor Siren 220V

Product Parameters

Type electrical alarm
Seem pressure 130db
Audio frequency 600±20 Hz
Electrical power 180w
weight eleven kg
Transmission length three km
Packing dimension 330* 330 * 250 mm

Color As picture colour
MOQ 1PCS
Packaging Details Carton package or CZPTment for Hand Operated Siren
Usage Alarm device,Civil defence siren
Busniess Type  Maker
Market  CZPT

 Product Description
1.Determine
  Alarms including hand alarm, electric alarm , each  place for emergency warning,  only hand alarm CZPT 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.
four.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

Hand operated siren  DH-200A is designed to provide effective warning in applications exactly where there is no electricity supply.
Powered by rotation the handle,this model has a plate to shut off the audio as soon as up to pace providing it the capacity to make different tones
Robust and compact,the siren can be easily transported to distant areas and folds up to a modest dimensions for simplicity of managing

Attributes : 
no energy supply required 
sturdy and compact for portability 
powerful minimal frequency seem
universally recognised signal 
Shutter mechanism to supply a decision of alerts:constant and warble 

Application: 
Camp website,civil defence,mountain rescue,coast guard warning,quarries/mining
 

Dh-200A Alarm High-Power Transmission 3km Explosion-Proof Electric Motor Siren 220V