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Quality, time-tested sirens and innovative outdoor warning systems can be found in Federal Signal's line-up of emergency and outdoor sirens. These sirens produce a high maximum pitch which provides excellent contrast to industrial ambient noise. ... A General Alarm Siren; ... Introduced in 1918, the Model A is still used today...
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www.federalsignal-indust.com/Sirens.asp
www.federalsignal-indust.com/Sirens.asp
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Sirens & Emergency Beacons...America's #1 Choice for Safety Lighting and Equipment! Important Note: Please enter any special option or color combinations in "comments" box when placing your order on- line. If you have any questions, please feel free to call us anytime.
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Design and develop warning and signalling devices. Products include lights and high power voice and siren systems . Product catalogs, technical literature and installation guides available for download .
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One touch of the keyboard sounds your choice of three (3) different emergency sirens; (Police Wailer siren, Fire Truck High-Low, siren Ambulance Euro siren) or a powerful truck air horn sound. The Enforcer is used to attract immediate attention with it's powerful 20 watts of sound.
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www.wolo-mfg.com/siren.htm
www.wolo-mfg.com/siren.htm
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The purpose of the Outdoor Warning Sirens is to warn the public of possible dangers such as a National Emergency, Weather related emergency, or a major disaster. When you hear the sirens you should seek cover at the closest shelter. ... Public Safety : Fire Department : Emergency Management : Outdoor Warning Sirens :
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www.ci.hurst.tx.us/Safety/Fire/Emergencymgmt/Sirens.htm
www.ci.hurst.tx.us/Safety/Fire/Emergencymgmt/Sirens.htm
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Emergency Lights; LED, Strobe, Light bars mini to Full Size ... Emergency Lights, Strobe Lights, Dash Lights, LED Lights, Sirens, Speakers, Arrow Boards, Switch Boxes, Flashlights, Map Lights, Light Bars, Mini Light Bars, Grill Lights, Deck Lights...
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A police car mechanic has been awarded more than £16,000 in damages after testing emergency sirens made him deaf. ... Whenever a vehicle came in for a service, he was required to turn on the sirens for several minutes and fix or retune them if they were malfunctioning.
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www.telegraph.co.uk/news/uknews/2439136/Police-car-mech...
www.telegraph.co.uk/news/uknews/2439136/Police-car-mechanic-awarded-damages-after-testing-emergency-sirens-made-him-deaf.html
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Scientists may able to help protect critically endangered northern right whales with the same alert sounds that make humans jump to attention. ... A species of whale that ignores most man-made noises - including passing boats - is attracted to sounds like the sirens used by emergency services.
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news.bbc.co.uk/2/hi/science/nature/3256406.stm
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On top of that, several studies have concluded that sirens deafen emergency personnel and cause driver stress and disorientation, doubtless leading to more accidents.
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www.straightdope.com/columns/read/2802/do-emergency-sir...
www.straightdope.com/columns/read/2802/do-emergency-sirens-have-to-be-changed-periodically-so-people-will-pay-attention
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