Burglar Alarm System HD

This Laser burglar security alarm system is designed and simulated using Circuit Wizard. How it works: + A laser beam is pointed to the LDR (Light Dependent Resistor) + When the laser beam is cut, the siren is switched on. + A Push To Break Switch is used to reset the alarm. To Download Circuit Wizard Visit: http://technofreak001.blogspot.com/2013/06/circuit-wizard.html