| Protecting your home is becoming more and more | | | | separate devices. |
| important all of the time. Not so long ago an alarm was | | | | Infrared Requires Direct Line Of Sight |
| a fairly rare sight, however now almost every house | | | | There is one disadvantage to using infrared security |
| has an alarm of some kind. One common kind of | | | | systems, and that is that they require a direct line of |
| security system is a wireless infrared home security | | | | sight. These beams cannot pass through walls, or |
| system. These are so popular because they are easy | | | | people. This limits the effectiveness of such a system |
| to install without having to drill holes and lay cables. | | | | in certain situations. TV remotes cannot work through |
| Wireless home security systems are well suited to | | | | walls, and your alarm will be working on exactly the |
| being used actors drive ways, and also to cover wide | | | | same principle. These cannot be used to send signals |
| areas of ground. Infrared is very useful to cover large | | | | to a control unit because they are so unreliable. |
| areas however it cannot be used to actually transmit | | | | It is possible to conceal the units inside walls however |
| your alarm signals. Infrared alarms work by sending out | | | | you must leave a hole so that the infrared beam can |
| a beam of light, if this beam is broken the alarm will be | | | | pass through. It's very easy for burglars to identify |
| sounded. | | | | where this light is coming from if you are using visible |
| Infrared security devices are perfect for covering an | | | | light sensors. This allows the intruder to avoid the |
| entire room withjust one device. You may have seen | | | | beam quite easily. |
| similar devices many times in movies! Lots of modern | | | | This makes it possible for certain criminals to avoid the |
| alarms use infrared detectors in order to cover large | | | | alarm system and so it won't go off. For this reason |
| rooms without having to put sensors on each individual | | | | lots of people use infrared security systems in |
| door and window. Wireless home security systems | | | | combination with some other form of security to make |
| can cover huge areas of ground without having to use | | | | sure the property is completely protected. |