Literature review on laser security alarm

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Laser based Security System is a type of security and alarm system that uses laser light and a light sensor. A security system protects our homes, offices, banks, lockers etc. There are different types of security systems available and laser based security system is an important and efficient type. A Laser security system can acts as a standalone system, which makes some sound or noise when it detects any irregular activity, or can be part of a much bigger security and home automation system, which can send messages, call the owner etc. In this project, we have designed a simple DIY lased based security system, which acts as a tripwire like security system and triggers an alarm when the laser in interrupted.
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Laser Security System: Protect Your Home Like A Top Secret Government Facility

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Laser Security System Locks Working Along With Circuit Diagram

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