Alarms can be either wired or wireless. Wireless alarms look nicer, are generally easier to install and can be removed more easily if you move house. They use battery-powered sensors that communicate with a control panel using radio signals.
While this type of alarm tends to be cheaper to install professionally, or can be fitted yourself, the alarms themselves can be more expensive. Wired systems usually need to be installed by a professional, as the wires will need to be hidden, so labour costs are higher.
When a bells-only (also called audible) alarm is triggered, it makes a loud noise, which will hopefully alert someone in the area to the situation and/or scare off an intruder. However, unlike a monitored alarm or one with a speech dialler, it won’t automatically contact a named person or the police, so there is no guarantee that anything will be done.
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Fitted Home Alarms Ltd
1 Twyford Place
Lincolns Inn Office Village
Phone: 0800 193 8727
020 3137 8727