ABSTRACT In recent past, the criminals frequently target mentally and physically challenged people and aged people who live alone. Hence their safety is a matter of serious concern to their relatives. Moreover their health conditions are also of important concern to their relatives who are physically far away from them. Hence it becomes necessary to develop a monitoring system that will indicate the conditions of these aged people to their relatives. Such a monitoring system involves sensors, micro controller and web based Global Systems for Mobile Communication (GSM) services for mobile communication. The project aims at developing such a monitoring system that is to be placed at the aged people premises. The sensors continuously grab the temperature conditions and indicate it to the micro controller. Micro controller activates the corresponding services to the relative's mobile under abnormal conditions. The Ethernet system then communicates to the relative's mobile through serial communication port. The embedded GSM based monitoring system serves as a reliable watchdog for the aged people living alone. In case of any critical situation, the proposed monitoring system provides the information to the relatives through GSM modem. It also helps the relatives to know about the current location of the aged people
