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Fire Alarm System
A fire alarm system warns people when smoke, fire, carbon monoxide or other fire-related emergencies are detected. These alarms may be activated automatically from smoke detectors and heat detectors or may also be activated via manual fire alarm activation devices such as manual call points or pull stations. Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people inside the building not to use the elevators. Fire alarm sounders can be set to certain frequencies and different tones including low, medium, and high, depending on the country and manufacturer of the device. Most fire alarm systems in Europe sound like a siren with alternating frequencies. Fire alarm electronic devices are known as horns in the United States and Canada and can be either continuous or set to different codes. Fire alarm warning devices can also be set to different volume levels.
Redditch is a town, and local government district in north-east Worcestershire, England, approximately 15 miles (24 km) south of Birmingham. The district has a population of 85,000 as of 2019. In the 19th century it became the international centre for the needle and fishing tackle industry. At one point 90% of the world's needles were manufactured in the town and its neighbourhoods.[7] In the 1960s it became a model for modern new town planning.
