Science Buddies: "Ask an Expert"

Hello sir I am Vamsee and I am from India. I have a seminar in about two weeks and so I have given the topic to make a working model of two burglar or theft detection systems. So I want help from you. I need the parts list and how to make the model. And I have another request for you that please mention those parts which can also be available in India and are not too costly.

The primary purpose of Science Buddy Experts is to assist investigators with Science Fair science projects which involve scientific investigations to formulate a hypothesis and answer a scientific question. Most the experts are based in the United States so it is unlikely that we could help with parts availability in India for a demonstration project.