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June 15, 2015 AT 2:00 am

Build Your Own Simple Polarity Checker

F3AB7GYIAGMSGA4 MEDIUM

Check out this super handy (and easy!) project tutorial from instructables user Salman Naveed.

Ever encountered difficulty in knowing if you’ve connected the wires right? Tired of pulling out your multimeter every time? Need something more compact and simpler to help you out? If you do, then this Instructable is for you!

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