Wednesday, April 27, 2011

Working of wireless home alarm systems

Wireless home alarm systems are gaining popularity when it comes to the safe keeping of one’s property from intruders and vandalism. The basic working principal of such a system remains the same as that of other wireless devices where signals are sent to the control panel from a remote location. These home alarm systems are available in two versions, one being those that can be self installed and the other which needs professional installation. Self installed wireless home alarm systems are simple and easy to install but have limited applications. Professionally installed sets are a little complex but have a wider range of applications.

All alarm systems are made up of three major components- the control panel, key pads, detective device and the alarm. In residential alarm systems the signals are sent to the control panel which might be remotely located, through radio signals. The detective device or the sensors of the system are installed at all those places where one can get easy access to the house. The sensors are inconspicuous and usually remain hidden away. These sensors set off an alarm only when its signals get interfered by some movement. The alarm gets triggered when the central panel of the alarm system receives wireless signals from the sensor. Modern sensors are equipped with infra red beams that can detect the slightest change in the temperature of the surrounding. Once the alarm system is set in the active mode, the detectors start to monitor the area and look for slightest of movement or temperature change.

While the sensors in most of the wireless home security alarm system remain wireless but the central panel needs to be wired to the home phone line as this is the means through which owners can contact the monitoring station when needed. In case an alarm gets triggered off, the control panel either send an automated alarm to the local law enforcement or will register the alarm to a paid monitoring system. The control panel also has the option of triggering off an audible or silent alarm. The latter is the most preferred one as it catches the intruders without alerting them.

The beauty of the wireless home alarm system is that besides alerting homeowners for intrusion, these systems can also be used to send panic signals to local health services in case of a medical emergency. Properties located in areas prone to earthquakes and floods can also use these sensors fitted with devices that can detect slightest of the seismic activities and alert owners in time.  



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