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The final result turned out to be the following:Figure3. Our Home Alarm SystemMaterials Used: Cost:PIC16F877A 7$4X4 Keypad 2$JHD 162A LCD 6$6V Alarm Buzzer 0. 5$Key tone Buzzer 0. 5$4 MEGA Crystal Oscillator 5$3 Flashing LEDs 0. 1$18 Pico Capacitors 1$Magnetic Sensor 2$Input VoltageWires 0. 1$Breadboard 3$Total Cost: 27.

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For example, the Sarbanes Oxley bill, which mandated many improvements in corporate managers' financial practices, did nothing to reduce the unethical practice by many managers of communicating only with those analysts who cooperate with management's forecasts of the future oni and Womack.

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Smoke and Heat Detectors: Detect smoke and heat.

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Clearly, the private security industry, and all security, was impacted by the September 11 terrorist attacks in New York, Washington D.