How to Make Laser Security Alarm System for Students Science Project

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http://youtube.com/watch?v=alQ9v8dyaTs

The Laser security alarm system is a DIY project which can useful for protection, You can make it at your home by following easy steps • • Circuit Diagram, Code,Music Name (all details available in Website) • • Full Details- • • Thank You So Much for Watching...... • • #laser #security #system

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