Here at Allied Fire and Security we often go on and on about how important we think it is for you to have your home, belongings and family protected by a burglar alarm. It is one of the easiest ways to deter potential robbers from you home is simply by making them think that they could be caught. A circuit is any circle of electricity where the electricity flows along a certain path between two points of opposite charge.
When you have a burglar alarm installed by us, we create various circuits around your home – this means that any time a potential burglar opens a door or window, he will break the circuit. There are two basic types of circuit based burglar alarms – a closed circuit system and an open circuit system. In a closed circuit system, the electric circuit is closed when a door or window is shut. This means that so long as the door or window is shut the electricity will be able to flow from one end of the circuit to the other. But…if someone opens the door or window while the alarm is activated, the circuit is opened and the alarm is triggered. In an open circuit system, opening the door closes the circuit, so that electricity begins to flow. In this system, the alarm is triggered when the circuit is completed. For the most part, a closed circuit system is the smarter choice as it is more difficult to deactivate by any potential burglar.
Circuit alarms are very effective for guarding the outside of a home but don’t work as well on the inside – because there aren’t as many doors and windows to open and close on the inside. Instead, we often use motion detecting alarms on the inside of a home. These systems are fairly straightforward – a home that has been protected by a motion detector will have small detectors in the corners of their rooms. When activated, any movement within the range of the motion sensor will active the alarm.
When either the circuit is broken on the outside of the home or the motion detector has sensed something, an alarm will sound. Usually, alarms are either a siren or loud alarm noise or flashing outdoor lights; either of these is often combined with a telephone auto-dialer. The combination of these things will alert the homeowner and the police of a potential intruder and will hopefully keep your home safe from would-be robbers.