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HomeVideos & SlideshowsVideosDIY Video: Simple Door Alarm System Using A Razor Blade

DIY Video: Simple Door Alarm System Using A Razor Blade

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In this video, the author is going to create a low-cost door alarm system using a razor blade and few components. This DIY is very simple and can be made by any non-engineer background person also.

Courtesy: Kedar Nimbalkar


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