International Research Journal of Education and Technology

This paper based on the working principle of laser light security system i.e. how the laser works and what is the advantages of this system in present as well as in future. It consists of very less components specially it can detect the moving object whenever it passes or cross the beam of laser light and it can also occupy small area as well as it covers longer distances. In this research, the LDR used as a sensor. There are various types of security system has made and invented around the world in which is one of the most important in our day-to-day life because of the increasing crime gang. Moreover, it used for the water leakage over in cities. So based on these problems we had research how to secure the things and can affordable by anyone that is called low-cost laser light security system. Laser light security system is a system of security or simply small alert in home as well as in office and it will also help to know that someone is entered in particular areas as well as for the leakages of water.

Keywords: LDR,security,areas