Newer homes built after 1993 were required to be built with an interconnected smoke alarm system. This law enhances the fire safety of most new homes. Houses that were built prior to 1993 were not required to have an interconnected system. If your house was built after 1993, the new wireless interconnected smoke alarm system should be a consideration. It is much less costly than an interconnected smoke alarm system that is built into the walls. The system is easy to install and not very expensive. It offers maximum protection for your family in case of a fire. The added fire safety feature with an interconnected smoke alarm system is that once one alarm in the system sounds, every alarm sounds. Your family is alerted of danger much sooner and therefore has a better chance of being able to get out of the house.