| The basics of choosing the right burglar alarm system | | | | system is not effective anymore since it is not |
| entails not only the considerations regarding pricing, | | | | practical to set up circuits in every inch of the house. |
| the layout of the property, and the distance | | | | Thus, the motion detection system has been |
| between the alarm company and the residence. It is | | | | incorporated in the basic workings of alarm systems. |
| also necessary to understand the mechanics of a | | | | A motion detector responds to irregularities in wave |
| burglar alarm system in order to make a proper and | | | | or radar patterns at a set distance. If there is |
| informed decision on how to choose the right one for | | | | movement, it registers that and sounds the alarm. |
| every residence. | | | | Advanced motion sensors include reliance on |
| There are countless types of burglar in the market -- | | | | photo-sensory detection (say, a burglar walking into a |
| from the most complicated ones that rely on | | | | beam of light from a light sensor source and breaks |
| photo-detection and laser encryption to the simplest | | | | the path of the beam to trigger the alarm). |
| do-it-yourself varieties (like stringing pots and pans | | | | Others employ the use of the more complicated |
| together). But almost all of them rely on the same | | | | concept of passive infrared motion detection wherein |
| concepts. | | | | the heat of the human body entering a certain |
| The most common alarm systems use the principle | | | | secured room affects the set controlled temperature |
| of circuits: closed and open. Let's say, one opens a | | | | of that particular room. If that temperature rises to a |
| door or window where an electrical circuit has been | | | | certain level, then the alarm is triggered. |
| run. In an open circuit, this scenario (the opening of | | | | Using a combination of the circuit system and motion |
| the door or window) triggers the alarm. The | | | | detection system is usually a good idea. Not to |
| disadvantage is that the simple act of cutting the | | | | mention tailoring each system's advantages and |
| wire will disable the alarm system. The circuit principle | | | | drawbacks to whatever area in the house one wants |
| is very useful in deterring burglars along and outside | | | | to secure. |
| the perimeter of the house. Once inside, the circuit | | | | |