How To Make A Laser Security System

Channel: Gaurav Yash Jain - AYJ

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This video will show you How To Make A Laser Security System in easy steps.
The things you need are :
*2n3904 NPN Transistor
*5K Variable Resistor
*1000uF Capacitor
*LDR (Light Dependent Resistor)
*3-12V Siren
*Laser
*Wires
*9V Battery
*9V Battery Clip
*Breadboard

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