What are the features that contribute to the efficiency of the Emergency Sirens?
There are so many types of sirens available in the market, but only a handful of them are useful for emergency vehicles. There are a few traits that the emergency sirens must possess to serve well when fitted to vehicles that ply during emergencies.
Emergency sirens come with some excellent attributes which make them extremely useful and effective too. A lot of research and development has ensured that modern sirens can resist heavy duty handling and can be used in all kinds of weather conditions. This is because the casing of the sirens is usually of high impact resistant plastic, powder coated aluminium or black polycarbonate. The sturdiness offered by these materials also makes the siren more effective against heavy duty usage and excessive vibration that can be expected when mounted on speeding vehicles.
Emergency sirens come with some intuitive features like park-kill which makes sure the siren can be disabled in order to avoid disturbing people when not required. You can choose between 100 Watt or 200 Watt speakers and also activate siren tones or turn them off through rotary and push button switches. There are other inputs too which will allow you to access functions such as tone selection, relay to ground function and operation of default tone. Whether the siren is used on cop vehicles, fire engines, ambulances or public safety vehicles, you can be assured that the mounting options are of high quality and will provide plenty of flexibility.
Good Emergency sirens come with exciting features such as combination On and Off buttons and horn ring transfer buttons. They also come equipped with locking quick-disconnect plug which makes replacement or servicing of the equipment extremely easy. Two interesting functions that are present in good sirens include radio repeat control and public address system. Hands-free sirens can be operated easily even where there is shortage of personnel. Good sirens are rolled out only after rigorous testing, to maintain the highest possible standards. The warning capability of the sirens is impressive but even more impressive is the resilience of the equipment to heavy duty usage and bad weather conditions.
Emergency sirens can be used both for external and internal mounting. The mounting brackets are specially customised for some highly popular law enforcement vehicles. Moreover, some brackets provide extra flexibility with height and angle adjustment. Bail brackets or L shaped brackets are also commonly used for these units. The maintenance free sirens come with LED indicators which not only help in diagnostics during malfunctioning of the equipment but also help when the sirens are to be operated during night time. The siren equipment is well secured from reverse polarity, short circuiting and high voltage issues.
Emergency sirens also come with a unidirectional microphone which can help in overriding other siren functions. There is a push to talk switch, rotary pattern selection switch and frequency selection switch. Some sirens have a pre-wired unidirectional microphone. The maintenance cost of the sirens is quite low but more importantly it is possible to easily install or remove the sirens and use them for different vehicles. Non-glare green interface and indicators enhance the visibility of the switches and available functions. It is a good idea to go for sirens which have been designed as per specification, like California Title XIII.
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Emergency sirens and many other items like Flashlights, Deck Lights, police lights, etc. Please visit the site for more details of various items available – http://www.extremetacticaldynamics.com/
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