How to make laser security system at home

laser security system

You can easily make laser security system.  To make this system I am using LDR (light dependent resistor), one Laser, 5 volt Relay, Variable resistor, 1.6k resistor and one siren light.

 

Video demo:


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3 Comments
  1. chirag patel 3 years ago

    can you please send me the circuit diagram of this video???
    thanks

  2. Joan 2 years ago

    It’s nice! Is it for sale?

  3. rahul 1 year ago

    Can you please send me a circuit

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