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.
Stafford (/ˈstæfərd/) is the county town of Staffordshire, in the West Midlands region of England. It lies about 15 miles (24 km) north of Wolverhampton, 15 miles (24 km) south of Stoke-on-Trent and 24 miles (39 km) north-west of Birmingham. The town population in 2011 was 68,472 and that of the wider borough of Stafford was 122,000, making it the third largest in the county after Stoke-on-Trent and Newcastle-under-Lyme.