How To Make A Portable Motion Detecting Alarm(PIR)
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How to Make an Electronic Motion Sensor Mouse Trap (PIR motion sensor and a pull-type solenoid)
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How to make alarm from old mobile phone EASY !
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How PIR modules work and using them to control LED strings.
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How to make Laser Security (Theft) Alarm using SCR - 1 KM Range
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How to Make a Simple Door Alarm
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Vintage Burglar and Fire Alarm System In A 1970’s Mansion
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DIY Home Security - ON A BUDGET!
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