Oct 2011

security system alarm

home security alarmsMoreover, having children might cause a lock of the system by improper insertion of the password. Also, if you failed to insert the password in time, the alarm may be triggered. Some burglars are highly experienced and have the knowledge to disable the alarm, the phone lines, and the electricity leaving you helpless in a critical situation. How Does a Home Alarm System Operate?Sensors are the most vital part of the system; they act like the eyes and ears of a home alarm system by monitoring break in points and interior areas. The typical sensors, which are usually two magnets, are generally installed on doors and windows such that one magnet is connected to the door or window and the other is connected to the door or window frame. When the door or window is opened, one magnet is removed from the surrounding area of the other and the sensor registers that the door has been opened. More advanced home alarm systems may also contain vibration sensors to detect when glass has been broken by measuring the vibrations caused by the breakage. Also, many systems use motion sensors that compute the proximity of a room’s walls by producing infrared beams and measuring the time required for them to bounce back; if a beam comes back sooner than expected, it likely bounced off of a person and the sensor registers motion. The control center keeps track of the status of the sensors and reports activity through LCD displays and other output devices. Moreover, when activity takes places, such as the opening of a window, the sensors report the activity to the control center and the center registers that a disturbance has occurred. In managed alarm systems, the control panel also checks the sensors to verify that they are still operational; if a sensor fails to reply, the center alerts the home owner of an out of order sensor.

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Oct 2011

what is a key fob

in home security systemsStatistics showed that every 14. 6 seconds, a burglary takes place in the United States and most of them occur between 10 am and 3 pm. Burglars spend an average of 8 to 12 minutes in your household. The residence owner can take the following safety measures such as: burglars search for homes that appear to be vacant; robbers want to waste no more than sixty seconds breaking into a home. Points of Entry of Burglars:Figure2 . Burglary Facts and Statistics 2008. Retrieved from ne survey in Pennsylvania showed that:81 percent of residential intrusions occur through the first floor. 34 percent of burglars entered through the front door;23 percent through a first floor window;22 percent through the back door;9 percent through the garage;4 percent entered through a basement;4 percent through an unlocked entrance;2 percent through a storage area;2 percent entered anywhere on the second floor. Definition of a Home Alarm System:A home alarm system is used as a defensive device to monitor all unwelcome events such as intrusion, glass breaking and mainly to avoid theft. It is also used to alert a user of a possible danger.

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