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.
Colchester (/ˈkoʊltʃɛstər/ (audio speaker iconlisten)) is a historic market town and the largest settlement within the borough of Colchester in the county of Essex, in the East of England. Colchester occupies the site of what was Camulodunum, the first major Roman city in, and sometime capital of, Roman Britain. Colchester lays claim to be Britain's oldest recorded town. Colchester has been a military garrison since the Roman era and is currently home to the 16th Air Assault Brigade. In 2019 it had an estimated population of 138,131.
Situated on the River Colne, Colchester is 50 miles (80 kilometres) northeast of London and is connected to the capital by the A12 road and its railway station which is on the Great Eastern Main Line. It is seen as a popular town for commuters, and is less than 30 miles (50 km) from London Stansted Airport and 20 miles (30 km) from the passenger ferry port of Harwich.
Colchester is home to Colchester Castle and Colchester United Football Club. The demonym is Colcestrian.