Nowadays, Liquefied Petroleum Gas (LPG) is an unavoidable one in day-today life. LPG is used as a fuel in a wide range of applications including in heating and cooking appliances, industrial applications, in vehicles and as a propellant and refrigerant. Due to leakage of LPG, it produces hazardous and toxic impact for human beings , for other living creatures and also it makes a large number of fire accident. To avoid this we need to detect the LPG Gas leakage and make alert to the users who

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... using LPG Gas. The reason for larger fire accident is because of dc power supply provided to home appliances , so we need to cut off power supply to home at instant we sense the gas is leaking. Another Major problem LPG cylinder user facing is "They don't know exactly the status of LPG gas completion" makes even more delay in booking the cylinder which is uncomfortable most of the times. Now a days we are having an Automatic voice system which also includes select options .Most of the illiterate people can't even complete the booking due to this reason. In this project we are using LPG gas sensor for sensing the leakage and produce the result in audio and visual formats also alerts human via Short Message Service (SMS) for Gas detection and also for booking of LPG Gas. This project continuously measures the weight of the cylinder and once it reaches minimum level it will automatically sends message to the authorized LPG Agent so that they can deliver the LPG cylinder in time.