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Contactless Door Bell Using NPN Transistor BC547 Mini Project

5.00 out of 5 based on 1 customer rating
(1 customer review)

550.00

Availability: In Stock

Category: .

Product Description

1 review for Contactless Door Bell Using NPN Transistor BC547 Mini Project

  1. Sanora Dewees
    5 out of 5

    :

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