Abstract :
Enhanced by advances in microelectronics, the use of burglar-alarm systems for the home is on the rise in the United States. Home owners in suburbia and apartment dwellers in big cities are among the big users of burglar-alarm systems, and with electronic intelligence and control now offered at reasonable cost, other protective measures ¿ like fire detection and ¿panic buttons¿ to summon medical help ¿ have been added.
