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

11 Comments
  1. chirag patel 10 years ago

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

  2. Joan 10 years ago

    It’s nice! Is it for sale?

  3. rahul 9 years ago

    Can you please send me a circuit

  4. B.nivetha 9 years ago

    please can you sent me the circuit diagram today 25.1.2016

  5. Balu Sk 9 years ago

    Can you give me the circuit diagram and the names of the components used in it..

  6. ziad mohamed al sayed 9 years ago

    can you please send me the circuit of this video thank you

  7. Louis 9 years ago

    Con you please send me the circuit diagram ?

    It is really cool !!

  8. Jiff 8 years ago

    Can work as a toy, certainly not as a security device as the receiver can be fooled by any LASER pointer. To be really secure, such a device MUST modulate the LASER AND compare what is sent to what is received.

  9. Honey 8 years ago

    Can you please send me a circuit…

  10. Aparicht 6 years ago

    Give me the ckt diagram of this project

  11. Ironman 6 years ago

    Sir circuit diagram please

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