With the advance level of recent technology, it is now possible to purchase and install a wireless home security system. Wireless home security system is easy to be installed, flexible, and portable. In a wireless system there are no wires to cut, giving no chance for intruder to enter your home undetected. A wireless security system gives you more flexibility in locating your system’s components, gives you a superior freedom over your home’s level of security reporting. A wireless security system simply operates by networking all the monitoring devices in which they can then transmit information back to the receiver, control panel or any other receiving devices. Homeowner is capable of choosing the position of the devices that are included in the system carefully. The devices used in a wireless security system usually have a range of effectiveness, in which they are able to transmit information back to the receiver easily. It means this device’s effectiveness is limited to some extend and may not wok if the conditional requirement is not fulfilled. For instance, your security system has a wireless door sensor which automatically activates when a door is opened. In order for the signal to be able to transmit from the door sensor to the monitoring device, it needs to be placed within a range radius. If the wireless door sensor is placed outside the range, it may not be able to effectively transmit a signal back to the monitoring device.