An intercom system can be a very handy tool for allowing communication and providing a certain level of security for you and your family members. Gone are the days of having to run wires through walls and ceilings to each and every station, now days wireless technology has all but made the hard wired systems obsolete.
If you have an external garage or work shed a wireless intercom is a great idea for letting people know that you are home so they can let you in or communicating with people inside when you are out working hard in the shed. All that is required is either a power point for the power supply or batteries if you prefer to move the unit around. No more digging trenches and laying conduit to take one station away from the home.
Having several units inside the home can also be an advantage in that you can keep an eye on or at least an ear out for what everyone is doing. With the kids playing in one room and you at the other end of the house you can still hear what they are up to and avoid any dangerous situations such as the kids venturing outside without you knowing or doing something that may put them in harms way.
Taking this idea one step further, if you have a young child and need to get things done while they are asleep you can install a station in each of the different rooms of your house and be able to listen out for them irrespective of where you are in the house. Think of it as a glorified baby monitor! Many modern systems offer hands free operation allowing you to continue what you are doing while talking with the other people in your house.
Some limitations do apply to wireless systems though. Some areas, depending on the design of your house, may fall into what are referred to as black spots or areas where the wireless signal is not able to travel. That and the fact that either mains power or battery power has to be kept up to the units for them to work are the only limitations with a wireless system. Generally by moving the units around within the room an area of good reception can be found.
If you are having a home built you may want to consider a hard wired system as they can be installed as the sheeting goes on and are considered to be a bit more reliable than wireless system. However with the technology that we have these days there is no reason why a wireless intercom cannot be successfully installed in an existing dwelling and the increased flexibility may make it all the more worthwhile.