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As the world is advancing, we are getting to experience lots of new things. Technology has gone to its extent and almost each and every work here is now done by the use of technology. From shopping online to paying your bills through internet, all the day to day work has become fast. In this fast moving world, it also necessary to stay alert so as to live safely. If you are living in a city then staying alert is becomes first preference and there is no worries as there are lots alarm devices which will save you.

Burglar alarm systems are very famous and used by almost each and every family. Now a day’s it has become a necessity to stay alert if you are living in a congested area. Even if you are living in an isolated area like village side, it is advised to install such system to protect your house. Isolated areas are more dangerous and thieves and frauds can attack these houses easily which are without any burglar alarm system. Basically the alarm system is very easy to understand. The system is a normal electrical circuit which consists of switches and motion sensors.

All these devices and circuits are controlled by a control box. These sensors are installed on entry points of the place and whenever any intruder try to trespass these entry points, the motion sensors senses motion activity in these points and the control box then gives a loud noise by which we come to know about the burglars activity.

Apart from the motion sensors, some alarm systems also consists of just electrical circuits. Even these systems work perfectly fine and the best part of such systems are that they are cheaper than other sensor systems. The working of these cheap burglar alarm systems is also very easy to understand. These systems consist of open and close circuits and attached to doors and windows of homes.

So when you start the control box, all the circuits are activated and when any intruder tries to open the window or door, the control box beeps and we come to know about the trespassing.

Sometimes it happens that thieves when enter house, they first switch off the control box so that it does not beeps. But now you can put your pass code inside the control box so that no one else than you can change the settings and thus the security increases.

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Source by Raymond K Smith