Picture a conventional phone and a cellular phone. Which
one is more convenient?Obviously, you would prefer a cell phone, since it is easy to carry anytime, anywhere. The same concept applies with a wireless home security system. You don’t have to be always present in your hoome to watch out for burglars. It can be set in two different modes: monitored
and unmonitored. Based on experience, it is better to opt for a monitored one, since when the system is disturbed, no annoying sound will be heard but an outside watcher will be informed of the incident.