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37756 | 05:17 | 2025-02-23

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1934 | 04:06 | 2025-09-23

how to make laser security theft alarm using scr 1 km range
1743275 | 05:31 | 2024-02-23

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272640 | 06:26 | 2025-07-23

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35710 | 03:56 | 2025-02-23

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84908 | 05:57 | 2024-02-23

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291859 | 02:21 | 2019-02-23

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27514 | 07:07 | 2025-10-23

turn a broken optical mouse into a home laser security system
352415 | 30:20 | 2025-05-23

how to make a simple laser security system
384123 | 04:19 | 2021-02-23

build an arduino laser security system alarm that calls you
40565 | 12:50 | 2022-02-23

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35822 | 05:50 | 2025-09-23

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42478 | 08:46 | 2024-02-23

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17457 | 03:27 | 2021-02-23

diy laser security system with an old mouse and laser light easy tech project tutorial
4251 | 07:55 | 2025-05-23

laser security alarm project using arduino laser shield protection for home laser door security
11947 | 06:51 | 2024-02-23

build a laser based home security system using arduino
16639 | 08:04 | 2025-02-23

how to make laser security alarm in telugu telugu experiments laser experiment
582670 | 07:16 | 2023-02-23

how to make laser security alarm system on breadboard at home
37159 | 07:09 | 2019-02-23

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153562 | 07:39 | 2025-02-23