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.
Rushden is a market town and civil parish in the East Northamptonshire district in Northamptonshire, England.
The parish of Rushden covers an area of some 9,000 acres (36.42 km2), and is part of the district of East Northamptonshire. The population of Rushden is 29,272 (Census 2011), making it the fifth largest town in the county. The Rushden-Higham urban area, which includes the adjoining town of Higham Ferrers, has an estimated population of 36,410. The estimated population of Rushden in 2015 was 30,282.