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how to make a laser security alarm using relay

Duration: 03:02Views: 59.9KLikes: 372Date Created: Mar, 2017

Channel: JAY DEV

Category: Howto & Style

Tags: laser security systemlaser security alarm using relayhow to make a laser security alarm using relaylaser security alarmlaser security

Description: learn how to make laser security system at home using 12 volt relay

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