How to make a simple magnet detection circuit || Reed sensor project for beginners

Hi ,
This video is to show you how to make a simple magnet detection circuit using reed sensor.

[SC.k]

Very very beautiful, thanks for sharing my friend 👍👍

[TurnOneRadar]

Cool project. My question is does the battery drain fast when not being used?

[SHANKAR-Nitrr]

That tiny item in glass called magnet Reed switch .u can found those in ur home energy meter (electricity meter)

[chrishamlet]

Transistor totally unnecessary as the reed is a switch and can carry more current than the transistor.

[rio_s]

Один вопрос - Зачем в Этой Схеме BC547 ? Можно было все тоже самое и без неё сделать

[TakeInstead]

To detect a magnetic field i use a screw(driver), very, very simple ;)

[jayson]

Why is the transistor required for such a simple circuit?